Laboratory of Molecular Material Chemistry - Faculty and Graduate School of Engineering Hokkaido University・Faculty of Engineering

A paper published in ACS Macro Letters has been published in a press release from Hokkaido University!
~New route to recyclable polymers from plants~
more detail here！

For a week from March 3, Prof. Sato and seven students went to Taiwan to participate in National Taiwan University Learning Satellite and joint symposiums held at the and four Taiwanese universities (National Taiwan University, National Taiwan University of Science and Technology, National Central University, and National Taipei University of Science and Technology)!
Pictures here！

A paper co-authored by Prof. Sato of laboratory of Molecular Integration at Hokkaido University was published in Chemical Physics Letters.
"Structural study of two polymer chains of poly(2-methoxyethyl glycidyl ether)-b-poly(2-ethoxyethyl glycidyl ether) thermoresponsive block copolymers using molecular dynamics simulations"

Prof. Sato received The Award of the Society of Polymer Science, Japan (2023) for "Precise Synthesis and Characterization of Architecturally Complex Polymers"!
more detail here！

Dr.Katsuhara and Tsuji (M2) has published an article to ACS Sustainable Chemistry & Engineering (IF=8.4).
Block copolymers consisting of cellulose acetate and poly(ε-caprolactone) (PCL) were precisely synthesized and added as a compatibilizer to cellulose triacetate/PCL blend to improve the physical properties of cellulose triacetate. Since both cellulose acetate and PCL have biodegradability, this research can provide an important foundation for the development of new biodegradable plastic materials.
"Acetyl Cellooligosaccharide-Based Block Copolymers for Toughening Cellulose Triacetate/Poly(ε-caprolactone) Biodegradable Blends"

A paper co-authored by Prof. Erata and Prof. Tajima of Hokkaido University was published in Polymer Journal (IF=2.8).
"Crystallinity improvements in cellulose II after multiple posttreatment cycles with a dilute NaOH solution"

A paper co-authored by Wen-Chang Chen of National Taiwan University and Prof. Chi-Ching Kuo of National Taipei University of Science and Technology was published in Analytical Chemistry (IF=4.6).
"Enhanced performance of phototransistor memory by optimizing the block copolymer architectures comprising Polyfluorenes and hydrogen-bonded insulating coils"

A paper co-authored by Prof. Erata and Prof. Tajima of Hokkaido University was published in Carbohydrate Polymers (IF=11.2).
"Elucidating the structural changes of cellulose molecules and dynamics of Na ions during the crystal transition from cellulose I to II in low temperature and low concentration NaOH solution"

A paper co-authored by Prof. Zhang of Harbin Engineering University was published in Analytical Chemistry (IF=9.4).
"Rational nanoarchitectonics of polypyrrole/graphene/polyimide composite fibrous membranes with enhanced electrochemical performance as self-supporting flexible electrodes for supercapacitors"

A paper co-authored by Prof. Zhang of Harbin Engineering University was published in Analytical Chemistry (IF=7.4).
"Positive Synergy between the Helical Poly(phenylacetylene) Backbones and the Helical L-Proline Oligopeptide Pendants for Enhanced Enantioseparation Properties"

Mizukami (M2) has published an article to ACS Macro Letters (IF=5.8).
We developed a versatile synthetic method for producing chemically recyclable unnatural (1→6)-polysaccharides using cellulose-derived starting materials, LGO and Cyrene. This study provides an important approach to explore the chemical spaces of unnatural polysaccharides and contributes to the development of sustainable polymer materials from abundant biomass resources.
"Chemically Recyclable Unnatural (1→6)-Polysaccharides from Cellulose-Derived Levoglucosenone and Dihydrolevoglucosenone"

Collaborative research with Tohoku University has been published in Polymer (IF=4.6). Topological interactions between cyclic and linear polymers have attracted significant attention to exploring the properties of soft materials. In this study, a blend system composed of a cross-linked polymer and a small amount of large-sized multicyclic polymers was prepared to achieve a reinforcing effect via rotaxane or catenane formation. this network polymer can be toughened by tuning the topological variables of the multicyclic chains (size and number of cyclic units) and the cross-link density of the network. This article suggests that a topological design can be useful for fabricating tough cyclic chain-mixed materials.
"Chromaticity sensor for discriminatory identification of aliphatic and aromatic primary amines based on conformational changes of polyacetylene"

At the 13th CSJ Chemistry Festa 2023 held on October 17-19, Baba (M2) and Iizuka (M1) received the Poster Presentation Award! Congratulations!

The 32nd Polymer Materials Forum was held at Nagoya Congress Center from November 30 to December 1, and our laboratory was introduced. Iizuka (M1) and Nunokawa (M1), who won the Poster Award at the 72nd SPSJ Annual Meeting, also gave poster presentations.
Pictures here!

Chaehun (D2) have published an article to GIANT (IF=7). We successfully constructed three-dimensional network structures (gyroid and hexagonally perforated lamellae) by biobased sugar-terpenoid hybrid materials with various molecular parameters. In particular, the stable construction of three-dimensional network structures in both bulk and thin film state suggests the potential application of these materials in the production of nano-templates.
"Ultrasmall 3D Network Morphologies from Biobased Sugar-Terpenoid Hybrid Block Co-oligomers in the Bulk and the Thin Film States"

The 16th Symposium on Organocatalysis was held at Tohoku University on November 27-28. From our laboratory, Professor Li gave an oral presentation and Mizukami (M2) gave a poster presentation.
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A paper co-authored by Prof. Zhang and Prof. Liu, Harbin Engineering University was published in Talanta (IF=6.1).
"Chromaticity sensor for discriminatory identification of aliphatic and aromatic primary amines based on conformational changes of polyacetylene"

The 13rd CSJ Chemistry Festa was held at Tower Hall Funabori from October 17 to 19. Baba(M2), Iizuka(M1), Ohta(M1), Kobayashi(M1)、 Nunokawa(M1) gave poster presentations.
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Gao(D3) and Suzuki (D2) have published an article to Macromolecules (IF=5.5). We developed a self-switchable, one-step polymerization system based on N-tosylaziridine (TAz)/cyclic anhydride ring-opening copolymerization (ROCOP), cyclic carbonate ring-opening polymerization (ROP), and epoxide/anhydride ROCOP. The synthesized block copolymers have two glass transition temperatures and microphase separation behavior, demonstrating that the chemical structure and properties of each block are precisely controlled.
"One-Step Synthesis of Poly(amide ester)-Based Block Copolymers with Defined Phase Separation Behavior"

The 5th International Cellulose Conference (ICC2022+1)/30th Annual Meeting of Cellulose Society of Japan was held from September 26th to 29th. From our laboratory, Prof. Isono and Mr. Tsuji (M2) gave poster presentations!
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The 72nd Symposium on Macromolecules was held at Kagawa University on September 26-28. From our laboratory, Prof. Sato, Prpf. Isono, Gao (D3), Mizukami (M2), and Ohta (M1) gave oral presentations, and Dr. Suzuki (D2) and Dr. Nishimura (D2) gave poster presentations!
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Prof. Isono has been selected for the Research Area "Secure Bonding and Gentle Decomposition for Sustainable Materials Design" of the 2023 Strategic Creative Research Promotion Program (PRESTO).
more detail here

We held a farewell party for Pan Quan-Jhen and Chang Ting-Wei. Thank you for your hard work!
Pictures here!

The 12th Taiwan-Jpan Bilateral Polymer Symposium (TJBPS 2023) was held at National Sun Yat-sen University in Taiwan on September 10-14. From our laboratory, Prof. Satoh gave an oral presentation and Chaehun (D2) and Ebii (M2) gave poster presentations, and Chaehun (D2) received the best poster award!
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We celebrated Prof. Satoh's birthday! Happy Birthday!!!
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The 2023 Annual SPACC Meeting and The 3rd International OUS Frontier Symposium were held at Okayama University of Science on September 1. From our laboratory, Ebe (D2) gave an oral presentation and Gao (D2) gave a poster presentation!
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The 14th CSE International Summer School & The 11th ALP International Symposium were held at Chichibubetsu Onsen "Chippu Yu & Yu" in Hokkaido on August 31 and September 1. From our laboratory,Suzuki (D2), Ke (D1), Ebii (M2), Chen, Tsai, and Chang gave poster presentations, and Ebii (M2) received the Poster Presentation Award!
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38th Summer University in Hokkaido and 2023rd Hokkaido Young Polymer Scientists was held from 25th to 26th, August. From our laboratory, 9 students presented posters and 1 student made a oral presentation. Mizukami (M2) and Ebe (D2) received the Best Poster Award!
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Gao(D2) won the poster presentation prize at the 13th SPSJ International Polymer Conference (IPC2023) on July. Congratulations!

We held a farewell party for Chen Wei-Wen from National Taipei University of Technology. Thank you for your hard work!
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The lectures by Professor Cheng-Liang Liu of National Taiwan University were held from August 21 to 24. Thanks for the interesting lecture!

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A review article written by Prof. Li was published in Bulletin of the Chemical Society of Japan (IF=4.0). The successful examples of various polymerization reactions catalyzed by widely available alkali metal carboxylates were outlined.
"Alkali Metal Carboxylates: Simple, Efficient, and Industrial Relevant Catalysts for Controlled Polymer Synthesis"

Ebii(M2) presented his thesis. Great job!
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Our research was featured in Photon Factory Highlights 2022.
more detail here, PF Highlight 2022 Website, article here

Our research was announced by Hokkaido University! (Multicyclic molecular wheels with polymer potential)
more detail here, article here

The inter-laboratory softball competition was held! In the final, we played against the Laboratory of Inorganic Synthesis Chemistry and won the game! We became a champion!!
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A paper co-authored by Prof. Harashima of Faculty of Pharmaceutical Sciences, Hokkaido University was published in Advanced Functional Materials (IF=19.0). We successfully synthesized ligand-free glycidylamine (GA) derivatives containing lipid nanoparticles (LNPs) . These LNPs are useful for RNA delivery and indicate a promising direction for the development of next-generation mRNA immunotherapies.
"Harnessing Topology and Stereochemistry of Glycidylamine-Derived Lipid Nanoparticles for in Vivo mRNA Delivery to Immune Cells in Spleen and Their Application for Cancer Vaccination"

A paper co-authored by Prof. Matsumoto of Laboratory of Biosynthetic Chemistry was published in ACS Sustainable Chemistry & Engineering (IF=8.4).
"Biosynthesis of High-Molecular-Weight Poly(ᴅ-lactate)-Containing Block Copolyesters Using Evolved Sequence-Regulating Polyhydroxyalkanoate Synthase PhaCᴀʀ"

A paper co-authored by Prof. Zhang and Prof. Liu, Harbin Engineering University was published in Journal of Molecular Liquids (IF=6.0).
"Hierarchical supramolecular self-assembly of Bi-Valine-Containing Poly(phenylacetylene) and tunable chirality"

The 13th SPSJ International Polymer Conference (IPC2023) was held from 18th to 21st at Sapporo Convention Center. Prof. Satoh gave oral presentation as an invited speaker and, Gao(D2), Ebe(D2), Chaehun(D2), Suzuki(D2), Nishimura(D1), Ebii(M2), Baba(M2) gave poster presentations.

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Prof. Cheng-Liang Liu (National Taiwan University) gave us mangoes! Thank you so much!

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Ebe (D2), Soga(M2), and Fujiwara(Alumnus) have published an article to Angewandte Chemie (IF=16.6). “Macro-rotaxanes” which consist of high-molecular-weight axle and wheel components were constructed by in situ cross-linking of linear polymers in the presence of multicyclic polymers. Extending the concept of topological trapping to multicyclic showed that multicyclic polymers with more cyclic units and larger ring sizes can be quantitatively trapped with up to 50 wt% as macro-rotaxanes.
"Rotaxane Formation of Multicyclic Polydimethylsiloxane in a Silicone Network: A Step toward Constructing “Macro-Rotaxanes” from High-Molecular-Weight Axle and Wheel Components"

Weeranuch (Postdoctoral researcher) has published an article to Carbohydrate Polymers (IF=11.2). Isomaltomegalosaccharide is a "chimeric" saccharide where α-(1→4)-segment at the reducing end interacts with the lipophilic compounds to form a complex and the hydrophilic α-(1→6)-main chain solubilizes the complex. In this article, we newly generated the long α-(1→4)-segment at the nonreducing end of α-(1→6)-main chain by enzymatic methods. The products displayed aqueous solubilization of drugs, flavonoids, and curcumin while the aggregation level was lesser when compared with that of similar chain amylose. SAXS measurement confirmed the rigid and flexible conformation in solution. In our research, enzyme-generated functional biomaterials were developed to maximize the hydrophobic binding efficacy toward water-insoluble bioactive compounds.
"Tunable structure of chimeric isomaltomegalosaccharides with double α-(1 → 4)-glucosyl chains enhances the solubility of water-insoluble bioactive compounds"

Chun-Kai Chen (National Taiwan University), enrolled as a double degree student has published an article to ACS Applied Materials & Interfaces (IF=9.5).
"Sustained Flexible Photonic Transistor Memories Based on Fully Natural Floating Gate Electrets"

On July 5, we held a gimpa to welcome Taiwanese interns and commemorate their softball victory!

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The inter-laboratory softball competition was held! In the socond round, we played against the Laboratory of Chemical System Engineering, Catalytic Reaction Engineering, Material Design and Engineering and won the game!

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New member joined (Evan, Vivi (international student from National Taipei University of Technology) and Victoria(international student from National Taiwan University of Science and Technology)). Welcome to our lab!

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Iizuka (M1) and Nunokawa(M1) won the poster presentation prize at the 72nd Society of Polymer Science of Japan Annual Meeting on May.
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The inter-laboratory softball competition was held! In the second round, we played against the Laboratory of Interfacial Electrochemistry and won the game!

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Prof. Guey-Sheng Liou (National Taiwan University) gave us mangoes! It was so sweet and so delicious! Thank you so much!

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Shunma Tanaka (alumnus) and Baba (M2) article has selected for front cover of Polymer Chemistry. Congraturations!

"Installation of the adamantyl group in polystyrene-block-poly(methyl mathacrylate) via Friedel–Crafts alkylation to modulate the microphase-separated morphology and dimensions"

Ebii (M2) has published an article to Polymer Chemistry (IF=5.364). We systematically synthesized multicyclic polystyrene via cyclopolymerization. Our synthetic approach allowed the systematic evaluation of the effects of structure on the physical properties. Furthermore, we successfully synthesized polystyrene-containing multicyclic copolymers.
"Cyclopolymerization: A versatile approach to multicyclic polystyrene and polystyrene-containing multicyclic copolymer"

72nd Society of Polymer Science of Japan Annual Meeting was held from 24th to 26th, May in Gunma. Ebe(D2), Chaehun(D2), Suzuki(D2) and Nishimura(D1) gave oral presentations, Ebii(M2), Baba(M2), Iizuka(M1), Ota(M1), Kobayashi(M1), and Nunokawa(M1) gave poster presentations.

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We held a farewell party for Huan Li from Harbin Institute of Technology. Thank you for your one year hard work!

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A paper co-authored by Prof. Zhang and Prof. Liu, Harbin Engineering University was published in Reaction Chemistry & Engineering (IF=5.200).
"Asymmetric aldol reaction catalyzed by amino acid tetrapeptides (l-Pro-l-Pro-l-Phe-l-Phe-OMe)"

The inter-laboratory softball competition was held! In the first round, we played against the Laboratory of Biosynthetic Chemistry and won the game!

Pictures here!

An interview with Prof. Isono was posted on the blog of Polymer Chemisry!
An interview with Prof. Isono

A paper co-authored by Prof. Shinichiro Sato of laboratory of chemistry of molecular assemblies was published in Nanomaterials (IF=5.719).
"All-Atom Molecular Dynamics Simulations of the Temperature Response of Poly(glycidyl Ether)s with Oligooxyethylene Side Chains Terminated with Alkyl Groups"

Katsuhara (alumnus) has published an article to Carbohydrate Polymers (IF=10.723). We synthesized triblock copolymers consisting of cellulose acetate and PDL, which are useful as environmentally friendly thermoplastic elastomers. We also revealed that the degree of substitution of cellulose acetate is a useful factor for controlling the biodegradability and mechanical properties of the elastomer.
"Effect of degree of substitution on the microphase separation and mechanical properties of cellooligosaccharide acetate-based elastomers"

Our advertisement feature was published on 27 April 2023, as part of Focal Point on Bioplastics in Japan in the online version of Nature, a weekly international journal publishing the finest peer-reviewed research in science and technology.
"Bacterial cellulose comes out of the woodwork"

Prof Satoh became a Principal Investigator (PI) of List Sustainable Digital Transformation Catalyst Collaboration Research Platform, Institute for Chemical Reaction Design and Discovery, Hokkaido University (ICReDD List-PF) in april.
personal page (Japanese) personal page (English)

A paper co-authored by Prof. Zhang and Prof. Liu, Harbin Engineering University was published in Analysis (IF=5.227).
"Hybridization of helical poly(phenylacetylene)s bearing l-proline tripeptide pendants into porous silica microspheres as a solvent-tolerable chiral stationary phase for liquid chromatography"

Shunma Tanaka (alumnus) and Baba (M2) have published an article to Polymer Chemistry (IF=5.364). By introducing adamantyl groups, which are hydrophobic groups, into the PS block of PS-b-PMMA with a molecular weight that is not inherently microphase-separated, we have achieved not only inducing a microphase-separated structure but also improving thermal stability and etching resistance.
"Installation of the adamantyl group in polystyrene-block-poly(methyl mathacrylate) via Friedel–Crafts alkylation to modulate the microphase-separated morphology and dimensions"

Research exchange meeting with Kenji Takahashi Lab (Kanazawa University) was held at Kanazawa University on April 7.

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5 bachelor students and 3 master students joined to our laboratory. In addition, Alga and Kenny (from Taiwan), Kosobe (secretary) and Weeranuch (postdoc) joined us!

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Prof. Satoh gave a lecture at the International mini-Symposium on Polymer Materials (ISPM) held in Taiwan from March 31 to April 2.

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We held the commencement and farewell party for graduating students!

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A paper co-authored by Prof. Zhang and Prof. Liu, Harbin Engineering University was published in Polymer Chemistry (IF=5.364).
"An l-proline-modified chiral porous hyper-crosslinked l-phenylalanine dipeptide—increased reaction rate and selectivity in asymmetric catalysis"

Our article published in Macromolecules in December 2022 "Sequential Polymerization from Complex Monomer Mixtures: Access to Multiblock Copolymers with Adjustable Sequence, Topology, and Gradient Strength" was selected for Macromolecules' Most Read Articles (1 month)!

Bachelor and master students presented their thesises.

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Tsai Cheng-Hang and Tzeng Yung-Ru of National Taipei University of Technology completed four months of research in Japan. We had a farewell party today and promised to see each other again in Taiwan!

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A paper co-authored by Prof. Yamamoto of laboratory of chemistry of molecular assemblies was published in Polymers (IF=4.967). In this study, defect-free cyclic poly(3-hexylthiophene) with a degree of polymerization from 14 to 43 was synthesized based on our previously established method, and its unique redox behaviors arising from the cyclic topology were investigated.
"Molecular Weight-Dependent Oxidation and Optoelectronic Properties of Defect-Free Macrocyclic Poly(3-hexylthiophene)"

Ph.D. Xia (former visiting researcher), Gao(D1) and Suzuki (D1) have published an article to Macromollecules (IF=5.98). We established a monomer reactivity gradient among several cyclic ether to synthesize highly sequence-controlled polymer. This comonomer library will allow more complex copolymer structures with adjustable sequence, topology, and gradient strength to be predicted and prepared.
"Sequential Polymerization from Complex Monomer Mixtures: Access to Multiblock Copolymers with Adjustable Sequence, Topology, and Gradient Strength"

A paper co-authored by Prof. Zhang and Prof. Liu, Harbin Engineering University was published in Polymer. Huan Li, who is currently in our lab on an internship, is the first author.
"Physically crosslinked PAA/Lys-BPEA hydrogel with rapid self-healing and long-term antibacterial activities"

Prof. Satoh gave an oral presentation at PPC17 (The 17th Pacific Polymer Conference, Brisbane, Australia) on December 12.

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A paper co-authored by Prof. Hsin-Lung Chen, National Tsing Hua University was published in Macromolecules (IF=6.057). We undertook a systematic study of the structures and phase transition behavior of three monodisperse BCPs composed of maltose as the sugar block and solanesol as the nonpolar block using in situ synchrotron small-angle X-ray scattering (SAXS).
"Self-Assembly Behavior of Sugar-Based Block Copolymers in the Complex Phase Window Modulated by Molecular Architecture and Configuration"

Prof. Satoh went to CERMAV-CNRS (Grenoble) in France to give a lecture titled "Precise Synthesis of Architecturally complex Polymer"

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A paper co-authored by Prof. Zhang and Prof. Liu, Harbin Engineering University was published in European Polymer Journal (IF=5.546). Huan Li, who is currently in our lab on an internship, is the first author. In order to improve the antibacterial properties of electronic skin, a star-shaped polyetheramide (Tyr-PEAm) derived from L-tyrosine was synthesized and cross-linked into the hydrogel network.
"Skin-friendly PVA/PDA/Tyr-PEAm composite hydrogel with long-term antibacterial and self-recovery ability for wearable strain / pressure sensor"

A paper co-authored by Prof. Zhang and Prof. Liu, Harbin Engineering University was published in Journal of Molecular Liquids (IF=6.633).This research manifested that novel low cost high-efficiency uranium adsorbents with tunable pore structure via the simple crosslinking of poly(styrene-co-acrylonitrile) copolymer (SAN) and subsequent amidoximation was developed.
"Amidoxime-modified Hypercrosslinked Porous Poly(styrene-co-acrylonitrile) Adsorbent with Tunable Porous Structure for Extracting Uranium Efficiently from Seawater, Journal of Molecular Liquids"

Prof. Satoh, Suzuki (D1) and Nishimura (D1) participated in AsiaNANO2022 which was held on November 9-11. The venue was Busan, South Korea!!

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A paper co-authored by Prof. Yamamoto of laboratory of chemistry of molecular assemblies was published in Polymers (IF=4.967).This research clearly indicates that cyclized polymers endow AgNPs with superior stability, compared with their linear counterparts. The enhanced colloidal stability through the use of c-PEG would enable applications within biological systems, where the high salt resistance can be exploited.
"Size Control and Enhanced Stability of Silver Nanoparticles by Cyclic Poly(Ethylene Glycol),"

Our research was announced by Hokkaido University.
more detail here, article here.

Gao (D2) have published an article to Macromolecules (IF=6.057). This study demonstrated that Alkali metal carboxylates can be used as simple and efficient catalysts for the ROP of epoxides and episulfides to obtain polyethers and polythioethers with predictable molecular weights and low dispersity.
"Polyether/Polythioether Synthesis via Ring-Opening Polymerization of Epoxides and Episulfides Catalyzed by Alkali Metal Carboxylates,"

12th CSJ Chemistry Festa was held at Tower Hall Finabori from October 18 to 20. Ebii(M1)、Tsuji(M1)、Soga(M1)、Mizukami(M1) gave poster presentations.

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Suzuki(D1) and Ebe(D1) got the offer of JSPS Research Fellowship(DC2)!Congratulations!!

New member joined (Tsai Cheng-Hang, Tzeng Yung-Ru (international student from National Taipei University of Technology)). Welcome to our lab!

Pictures here!

Ph.D. Xia (former visiting researcher), Gao(D1) and Suzuki (D1) have published an article to Journal of the American Chemical Society(JACS). We reported self-switchable alternating copolymerization from a mixture of two different cyclic anhydrides, epoxides, and oxetanes, where a simple alkali metal carboxylate catalyst switches between ring-opening alternating copolymerization (ROCOP) of cyclic anhydrides/epoxides and ROCOP of cyclic anhydrides/oxetanes, resulting in the formation of a perfect block tetrapolymer.
"Multidimensional Control of Repeating Unit/Sequence/Topology for One-Step Synthesis of Block Polymers from Monomer Mixtures"

We celebrated Prof. Satoh's birthday! Happy Birthday!!!

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71th Symposium on Macromolecules was held at Hokkaido University from September 5 to 7. Prof.Satoh, Katsuhara(D3), Tio(D1), Nishimura(M2), Takahashi(M2), Ebii(M1), Tsuji(M1), and Hanyoung(M1) gave oral presentations, Baba(M1), Soga(M1), and Mizukami(M1) gave poster presentations.

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The lectures by Professor Guey-Sheng Liou of National Taiwan University were held from August 29 to September 2.Thanks for the interesting lecture!

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Professor Emeritus Akira Hirao of Tokyo Institute of Technology visited our lab and gave us a lot of advice mainly on anionic polymerization. Thank you very much!

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Suzuki (D1) have published an article to Polymer Chemistry (IF=5.364). We have developed a new synthetic method for hyperbranched polyesters (HBPE) by ring-opening alternating copolymerization of epoxides and trimellitic anhydride, using cesium pivalinate as a catalyst. By appropriately selecting anhydrides, epoxides, and alcohol initiators, various HBPEs with different backbone structures can be obtained. Due to its versatility and simplicity, it has the potential to be used in a wide range of applications such as additives and biomedical applications.
"Synthesis of Hyperbranched Polyester via Ring-opening Alternating Copolymerisation of Epoxide with Cyclic Anhydride having a Carboxyl Group"

The research results of our graduates, Naho Kawakami and Ryoya Komaki, have been published in Biomacromolecules (IF= 6.978) with Prof. Isono as the first author. It is also an international co-authored work with Prof. Chen of National Tsinghua University and Prof. Borsali of CERMAV. Microphase separation of monodisperse block co-oligomers composed of maltooligosaccharides and solanesols has been successfully used to construct various nanoscale morphologies with carbohydrate microdomains. This strategy provided access to nanostructured carbohydrate materials with not only conventional LAM, HEX, and BCC morphologies but also GYR, HPL, and Fddd network morphologies.
"Tailored Solid-State Carbohydrate Nanostructures Based on Star-Shaped Discrete Block Co-Oligomers"

37th Summer University in Hokkaido was held from 17th to 18th, August. Ebii(M1), Tsuji(M1), Baba(M1), Huan Li and Huang Yan-Sin(international student) gave poster presentations.


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Nishimura(M2) presented his thesis. Great job!

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New member joined (Yan-Sin Huang (intership student from National Taiwan University of Science & Technology)).

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A paper co-authored with Prof. Chunhong Zhang and Prof. Lijia Liu, Harbin Engineering University was published in Colloids and Surfaces A (ELSEVIER) (IF=5.518). The flexible supercapacitor based on PEI/PANI-7 demonstrated exceptional capacitance, high energy density and power density, and outstanding flexibility while preserving the cyclic stability.
"Fabrication of electrospun polyetherimide/polyaniline self-supporting microfiber membranes as electrodes for flexible supercapacitors via in-situ polymerization"

As a testament to our collaboration with National Taiwan University's College of Engineering Dean Wen-Chang Chen, a tree named "Toshifumi Satoh" has been created at National Taiwan University!
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The Chemical Society of Japan Hokkaido Branch 2022 Summer Meeting was held on July 23rd online.Soga(M1), Mizukami(M1), Ebii(M1), Hanyoung(M1), Baba(M1) and Nishimura(M2) gave oral presentations.
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29th The Cellulose Society of Japan Annual Meeting was held from 21st to 22nd, July in Kanazawa. Tsuji(M1) gave poster presentations.
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Nishimura (M2), Ebii (M1) and Soga(M1) won the poster presentation prize at the 71th Society of Polymer Science of Japan Annual Meeting on May.
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Prof. Cheng-Liang Liu (National Taiwan University) gave us mangoes! Thank you so much!

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Prof. Redouane Borsali (CERMAV-CNRS, Grenoble Alps University) and Prof. Guey-Sheng Liou (National Taiwan University) will stay at Hokkaido University for 6 months and 3 months, respectively, from June 10th as invited professors.

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The Society of Fiber Science and Technology Japan Annual Meeting (2022) was held from 8th to 10th, June in Tokyo and online.

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New member joined (Li Huan (intership student from Harbin Engineering University)).

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71th Society of Polymer Science of Japan Annual Meeting was held from 25th to 27th, May at online. Ebii(M1), Tsuji(M1), Hanyoung(M1) and Mizukami(M1) gave oral presentations, Gao(D1), Nishimura(M2), Ebii(M1) and Soga(M1) gave poster presentations.

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Lee Chaehun (D1) shared their experiences, and thoughts about studying at HU, living in Sapporo, and more.
Hokkaido University in Students’ Words — South Korea

Nishimura (M2) have published an article to nanomaterials (MDPI) (IF=5.076). we propose the use of oligosaccharide and oligodimethylsiloxane as hydrophilic and etch-resistant hydrophobic inorganic blocks, respectively, to build up a novel BCP system. These BCPs microphase separated into gyroid, asymmetric lamellar, and symmetric lamellar structures with domain-spacing ranging from 5.0 to 5.9 nm. "Fabrication of Ultrafine, Highly Ordered Nanostructures Using Carbohydrate-Inorganic Hybrid Block Copolymers"

A paper co-authored by Prof. Yamamoto of laboratory of chemistry of molecular assemblies was published in Polymers (IF=4.329). "Topology and Sequence-Dependent Micellization and Phase Separation of Pluronic L35, L64, 10R5, and 17R4: Effects of Cyclization and the Chain Ends"

Assistant Prof. Li Feng has arrived at our Laboratory from May 2.
We are very happy to work with you!

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The website of the Applied Chemistry Course has been renewed. It is a very easy-to-read summary of our research and so on.
【The Applied Chemistry Course】
【Laboratory of Polymer Chemistry】

A review article written by alumnus Dai-Hua Jiang was published in ACS Sustainable Chemistry & Engineering (IF=8.198). The properties of medical plastics, recycling options and the feasibility of substituting them with bioplastics were outlined.
"Sustainable Alternatives to Nondegradable Medical Plastic"

4 bachelor students and 1 master students joined to our laboratory.
Prof. Tajima has moved to the Biomolecular Chemistry Laboratory from this year.

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The results of our joint research with Prof. Takahiro Murashima of National Defense Academy of Japan and Katsumi Hagita of Tohoku University have been published in Polymer (IF = 4.430). A mixed system consisting of complexes of bonded three-rings and linear chains was evaluated through the CGMD simulations and confirmed via PDMS experiments. A close correspondence between the experimental and simulation results enables the prediction of the trapping and bridge probabilities of spiro-multicyclic polymers.
"Trapping probabilities of multiple rings in end-linked gels"

The results of our joint research with Prof. Tetsuo Kondo of Kyushu University have been published in Cellulose (IF=5.044). The physical properties and cell adhesion of bacterial cellulose/hyaluronic acid composite prepared by genetically modified acetic acid were evaluated, and its usefulness as a biomaterial was confirmed.
"Physical characteristics and cell-adhesive properties of in vivo fabricated bacterial cellulose/hyaluronan nanocomposites"

A paper co-authored with Prof. Lijia Liu, Harbin Engineering University was published in Acta Biomaterialia (IF=8.947). A series of star-shaped and membrane-active cationic polyetheramides derived from amino acids, were synthesized via condensation of amino acids and polyetheamine. they are promising to be used as long-term and biofilm-disrupting antimicrobial agents.
"Membrane-active amino acid-coupled polyetheramine derivatives with high selectivity and broad-spectrum antibacterial activity"

A paper co-authored with Prof. Chunhong Zhang, Harbin Engineering University was published in Environmental Science: Nano (IF=8.131). The oxime-modified hierarchical self-assembly polyimide microspheres composed of polyimide nanosheets have been fabricated successfully by a solvothermal method to adsorb uranium from aqueous solution, of which the maximum adsorption capacity reaches 415 mg/g (pH = 6).
"Oxime-modified hierarchical self-assembly polyimide microspheres for high-efficient uranium recovery from wastewater"

A joint research with Prof. Yao at Graduate School of Advanced Life Sciences, Hokkaido University has been published in Acta Crystallographica Section D Structural Biology (IF=7.652). Endo-beta-1,4-glucanase (EbBcsZ) from Enterobacter sp. CJF-002 was analyzed for its BC hydrolysis activity and crystal structure, and the trimming mechanism of EbBcsZ in cellulose synthesis was proposed from the reaction process.
"Structural snapshot of a glycoside hydrolase family 8 endo-β-1,4-glucanase capturing the state after cleavage of the scissile bond"

Our joint research with Prof. Kono of Tomakomai National College of Technology has been published in Nanomaterials (IF=5.076). The enhancement in the mechanical strength of polymethyl methacrylate was achieved with a small addition (0.1 wt%) by introducing methyl methacrylate groups on the surface of nanofibrillated bacterial cellulose (NFBC).
"Reinforcing Poly(methyl methacrylate) with Bacterial Cellulose Nanofibers Chemically Modified with Methacryolyl Groups"

Bachelor and master students presented their thesises.

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Collaborative review by Prof.Isono, Prof. Satoh, Prof. Chen (NTU), and Prof. Borsali (CNRS) has been published to Polymer Journal (IF=3.080). The synthesis, self-assembly behavior, and recent promising applications of block copolymers consisting of a carbohydrate segment were summarized.
"Self-assembly of carbohydrate-based block copolymer systems: glyconanoparticles and highly nanostructured thin films"

Kobayashi finished his Ph.D defence. Great job!

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CSJ Hokkaido division winter conference 2022 was held. Takahashi (M1), Ebii (B4), and Tsuji (B4) gave their oral presentations.

56th SPSJ Hokkaido division conference was held. Soga (B4) and Hanyoung (B4) gave oral presentations, Tio (D1), Hamidah (M2), Ashiya (M1), Tsujisaki (M1) and Nishimura (M1) did poster presentation. Hanyoung and Ashiya got awarded for their outstanding presentation! Congrats!

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Dr. Ree has published an article to Macromolecules (IF=5.985). X-ray scattering analysis of bicyclic amphiphile solutions revealed that the combination of bicyclic topology and various block sequence gives grater micellar properties.
"Unimodal and Well-Defined Nanomicelles Assembled by Topology-Controlled Bicyclic Block Copolymers"

Dr. Xia (visiting researcher) has published an article to Nature Communications (IF=14.919). We have established an innovative synthestic method to give multiblock polymers in one step.This method also enables precise control of the block sequences and polymer architectures, which could accelerate the development of a variety of functional polymer materials.
"One-step synthesis of sequence-controlled multiblock polymers with up to 11 segments from monomer mixture"

Pacifichem 2021 was held at online. Prof.Satoh, Prof.Isono, Kobayashi(D3), Mato(D3), Katsuhara (D2) gave the presentations.

A collaborative research with Prof. Hiroyuki Kono of National Institute of Technology, Tomakomai College was published to ACS omega (IF=3.512). We success to improve the dispersibility of nanofibrillated bacterial cellulose (NFBC) in water by introducing carboxyl groups on its surface.
"Facile Post-Carboxymethylation of Cellulose Nanofiber Surfaces for Enhanced Water Dispersibility"

Kobayashi (D3) and Ashiya (M1) have published an article to Polymers (MDPI). we report the Suzuki–Miyaura catalyst-transfer polycondensation (SCTP) of triolborate-type carbazole monomers.
"Suzuki–Miyaura Catalyst-Transfer Polycondensation of Triolborate-Type Carbazole Monomers"

The 32nd Elastomer Symposium was held at Kyushu University. Ebe (M2) gave oral presentations.

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A paper co-authored by Prof. Lijia Liu, Prof. Yudan Wang, Prof. Chunhong Zhang of Harbin Engineering University was published in European Journal of Medicinal Chemistry (IF=6.514). A series of N-terminal dipeptide mimetics with an aromaticamide moiety were synthesized from amino acids.
"Synthesis and bioactivities of new N-terminal dipeptide mimetics with aromatic amide moiety: Broad-spectrum antibacterial activity and high antineoplastic activity"

A paper co-authored by Prof. Matsumoto of laboratory of biosynthetic chemistry was published in Scientific Reports (Nature, IF=4.380). "Artificial polyhydroxyalkanoate poly[2-hydroxybutyrate-block-3-hydroxybutyrate] elastomer-like material"

Mato (D3) finished the Ph.D. defence. Good job!

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Today, we invited Professor Hironori Kaji of Kyoto University to give a lecture. Thank you.

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A paper co-authored by Prof. Yamamoto of laboratory of chemistry of molecular assemblies was published in Nanoscale Advances (RSC, IF=4.553). "PEGylation of Silver Nanoparticles by Physisorption of Cyclic Poly(Ethylene Glycol) for Persistent Dispersion Stability, Antimicrobial Activity, and Cytotoxicity"

A paper co-authored by Prof. Tajima with Prof. Kondo of Kyushu University was published in Biomacromolecules (ACS, IF=6.092). Genetic recombination has made it possible to synthesize hyaluronic acid and bacterial cellulose complexes in a single step in vivo. It is expected to be applied as a biomaterial in the future.
"Biofabrication of a Hyaluronan/Bacterial Cellulose Composite Nanofibril by Secretion from Engineered Gluconacetobacter"

A paper co-authored by Prof. Tajima with Prof. Imai of Kyoto University, Prof. Yui of Miyazaki University, Prof. Yao of Hokkaido University, and Prof. Saxena of Texas University was published in Cellulose. It is a review of cellulose synthesis machines in bacteria.
"Cellulose-synthesizing machinery in bacteria"

The doctoral dissertation public presentation of Li-Che and Dai-Hua (D3), who are currently enrolled in the double degree program, was successfully completed the other day. Well Congrats! Tio(M2) also finished his master thesis presentation and has entered the doctoral course. Let's work hard for three years!

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The 7th Hokkaido University Cross-Departmental Symposium was held at online. Prof. Isono, Ebe (M2), and Nishimura (M1) gave presentations. Ebe got awarded for his poster presentation.

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28th Cellulose society annual meeting was held at online. Hamidah(M2), Oka(M1), and Tsujisaki(M1) gave poster presentations. Hamidah got awarded for her poster presentation.

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Mato (D3) and Sudo (our alumna) have published an article to Macromolecules. We have established the cyclopolymerization of star-shaped macromonomers to prepare graft polymers with dense cage-shaped side chains. We have also demonstrated that it is possible to adjust the physical properties of grafted polymers by controlling the side chain structure, which is expected to enhance the functionality and versatility of various nanomaterial applications.
"Densely Arrayed Cage-Shaped Polymer Topologies Synthesized via Cyclopolymerization of Star-Shaped Macromonomers"

Cheahun (M2) got the offer of JSPS Reserch Fellowship (DC1)! Congrats!

36th Summer University in Hokkaido was held on August 27th at online. Nishimura(M1), Ebii(B4), Tsuji(B4) gave thier poster prezantations.

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Chaehun (M2) and Ashiya (M1) won the oral presentation prize at the Reserch Meeting in Summer 2021 (The Chemical Society of Japan) on July.

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A collaborative research with Prof. Harashima (Hokkaido Univ.) was announced by Hokkaido University.
more detail here, article here.

Katsuhara (D2) and Takagi (alumna) article has selected for Supplementary cover of ACS Sustainable Chem. Eng.(ACS). Congraturations!
"Highly Stretchable Semiconducting Polymers for Field-Effect Transistors through Branched Soft–Hard–Soft Type Triblock Copolymers"

Mr. Rafi(Hakodate National college of technology) finished his internship between July 26th-30th. Thank you for working together!!

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We held a farewell party for Brian, who will be retiring as an specially appointed assistant professor in August.

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Research Meeting was held on July 17th at online. Chaehun(M2), Takagi(M2), Ebe(M2), Suzuki(M2), Ashiya(M1), Takahashi(M1), and Nishimura (M1) gave their oral presentations.

New member joined (Hanyoung (bachelor 4), Takimoto (internship)). Welcome!

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Prof. Cheng-Liang Liu has sent us many mango from Taiwan. There are very delicious!! Many thanks!!

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Katsuhara (D2) and our alumna Takagi have published an article to ACS Sustainable Chem. Eng.. We compared the propaties of cellulose- and amylose-based block copolymers (BCP). Cellulose-based BCP exhibit superior mechanical propaties than amylose counterpart.
"Enhanced Self-Assembly and Mechanical Properties of Cellulose-Based Triblock Copolymers: Comparisons with Amylose-Based Triblock Copolymers"

A collaborative research with Prof. Ishida and Prof. Ando of Tokushima University and Kusano Sakko Inc. was published in Nanomaterials.
This article suggests that nano-fibrlillated bacterial cellulose held doxorubicin (DXR), which is a common cancer drag, and showed higher therapeutic efficacy towards a peritoneally disseminated gastric cancer.
"Doxorubicin Embedded into Nanofibrillated Bacterial Cellulose (NFBC) Produces a Promising Therapeutic Outcome for Peritoneally Metastatic Gastric Cancer in Mice Models via Intraperitoneal Direct Injection"

A collaborative research with Prof. Harashima (Hokkaido Univ.) was announced by Hokkaido University.
more detail here, article here

Prof. Brian has published an article to ACS Macro letters (ACS, IF=6.042).
"Highly Ordered Nanoscale Film Morphologies of Block Copolymers Governed by Nonlinear Topologies"

A collaborative research with Prof. Yamamoto (Hokkaido Univ.) was published in Langmuir (ACS, IF=3.557).
"Cyclization of PEG and Pluronic Surfactants and the Effects of the Topology on Their Interfacial Activity"

A collaborative research with Prof. Harashima (Hokkaido Univ.) was published in Materials Horizons (RSC, IF=12.319).
"Engineered Ɛ-decalactone lipomers by-pass the liver to selectively in vivo deliver mRNA to the lungs without targeting ligands"

The new tensile test machine have been installed to our lab!

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70th Society of Polymer Science of Japan Annual Meeting was held from 26rd to 28th, May at online. Prof. Brian and Lee(M2) gave oral presentations, Mato (D3), Kobayashi (D3), Katsuhara (D2), Tio(M2), Takagi(M2), Ebe(M2), Suzuki(M2), Ashiya(M1), Takahashi(M1), Nishimura(M1), and Hamidah(M1) gave poster presentations.

Our alumni Watanabe and Kaizawa have published an article to Angewandte Chemie. We performed one-shot intrablock crosslinking of linear block copolymers to realize single-chain nanoparticles. The microphase-separated structure of the Janus-shaped (SBS-AG)cl was found to be 47% smaller, as compared to linear one.
"One-Shot Intrablock Crosslinking of Linear Diblock Copolymer to Realize Janus-shaped Single-Chain Nanoparticle"

Prof. Brian has published an article to Polymer Chemistry (RSC). We have investigated nanoscale film Morphologies of three-armed cage block copolymer. Compared to linear counterparts, the cage block copolymer achieved a d-spacing reduction of 54.8-74.5%.
"Correlations of nanoscale film morphologies and topological confinement of three-armed cage block copolymers"

Xia (visiting researcher) has published an article to ACS Catalysis (ACS). We have established a one-pot synthesis for well-defined block polymers with controlled sequences and architectures using biocompatible alkali metal carboxylates as catalysts.
"Smart Access to Sequentially and Architecturally Controlled Block Polymers via a Simple Catalytic Polymerization System" This research was announced by Hokkaido University.
detail here

We celebrated the promotion of Prof. Isono!

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Prof. Brian has published an article to Macromolecules. We characterized the nanoscale film morphology of tricyclic PDGE-b-PTEGGE block copolymers via synchrotron grazing incidence X-ray scattering analysis.
"Influence of Topological Confinement on Nanoscale Film Morphologies of Tricyclic Block Copolymers"

Prof. Isono has published an article to Polymer Journal.
We reported synthesis of functional and architectural polyethers via the anionic ring-opening polymerization of substituted epoxides
"Synthesis of functional and architectural polyethers via the anionic ring-opening polymerization of epoxide monomers using a phosphazene base catalyst"

5 bachelor students and 2 master students joined to our laboratory.
Prof. Isono became a associate Professor of our group!

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Prof. Isono got awarded the prize of young researcher encouragement, graduate school of engineering.

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The new SEC-MALS machine have been installed to our lab!

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We held the commencement and farewell party for graduating students!

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A Taiwan-Japan collaborative research with Profs. S. H. Tung (NTU) and C.-C. Kuo (NTUT) was published in Chemical Engineering Journal (IF=10.652).
This article was written by Dai-Hua (D3).
"Facile One-Pot synthesis of Rod-Coil Bio-Block copolymers and uncovering their role in forming the efficient stretchable Touch-Responsive light emitting diodes"

Bachelor and master students presented their thesises.

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A collaborative research with Prof. Ishida and Prof. Ando of Tokushima University and Kusano Sakko Inc. was published in International Journal of Biological Macromolecules. This article suggests that nano-fibrlillated bacterial cellulose held paclitaxel, which is a hydrophobic cancer drag, and showed higher therapeutic efficacy towards a peritoneally disseminated gastric cancer.
"Therapeutic efficacy of a paclitaxel-loaded nanofibrillated bacterial cellulose (PTX/NFBC) formulation in a peritoneally disseminated gastric cancer xenograft model"

A collaborative research with Prof. Toshifumi Yui and Prof. Uto of Miyazaki University, Prof. Naoki Sunagawa of The University of Tokyo, and Prof. Yao Min of Hokkaido University was announced by Hokkaido University. In this article, a part of the mechanism for cellulose fiber formation was elucidated by a computer simulation.
more detail here, article here

The article of a collaborative research with Prof. Toshifumi Yui and Prof. Uto of Tokushima University, Prof. Naoki Sunagawa of The University of Tokyo, and Prof. Yao Min of Hokkaido University was published in Journal of Chemical Theory and Computation (ACS) has been selected as the front cover. Congraturations!!
"Molecular dynamics simulation of cellulose synthase subunit D octamer with cellulose chains from acetic acid bacteria; Insight into dynamic behaviors and thermodynamics on substrate recognition"

A collaborative research with Prof. Toshifumi Yui and Prof. Uto of Tokushima University, Prof. Naoki Sunagawa of The University of Tokyo, and Prof. Yao Min of Hokkaido University was published in Journal of Chemical Theory and Computation (ACS). In this article, a part of the mechanism for cellulose fiber formation was elucidated by a computer simulation
"Molecular dynamics simulation of cellulose synthase subunit D octamer with cellulose chains from acetic acid bacteria; Insight into dynamic behaviors and thermodynamics on substrate recognition"

A collaborative research with Prof. Redouane Borsali (CERMAV-CNRS) was published in Macromolecules (ACS). This article was written by Our alumna Sakai-Otsuka as a first author.
"Competing Molecular Packing of Blocks in a Lamella-Forming Carbohydrate-block-poly(3-hexylthiophene) Copolymer"

Kobayashi (D2) has published an article to Polymer Chemistry (RSC).
We successfully demonstrated that the Suzuki–Miyaura catalyst transfer polycondensation (SCTP) of the triolborate-type fluorene monomer can be an efficient and versatile approach.
Synthesis strategy of high-quality π-conjugated polymers can eventually contribute to the development of organic lightemitting diodes, organic photovoltaics, and organic memory devices.
"Suzuki–Miyaura Catalyst-Transfer Polycondensation of Triolborate-Type Fluorene Monomer: Toward Rapid Access to Polyfluorene-Containing Block and Graft Copolymers from Various Macroinitiators"

Prof. Isono has published an article to Communications Chemistry (Nature).
We reported a readily available discrete block co-oligomers (BCOs) system that is capable of forming various self-assembled nanostructures with ultrasmall periodicity.
These BCOs showed self-assembled into well-ordered several nanostructures showing 4~8 nm, and we believed that presented BCOs will inevitably expand their application scopes in various fields.
"Rapid access to discrete and monodisperse block co-oligomers from sugar and terpenoid toward ultrasmall periodic nanostructures"

A national collaborative research with Prof. Wen-Chang Chen of National Taiwan University was press released by Hokkaido University.
In this reserach, we have developed a high-performance photoresponsive organic memory device based on rod-coil-type organic semiconductor molecules.
more details here!

The new GPC machine have been installed to our lab!

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Our alumnus Takojima was published to Polymer Chemistry (RSC).
we report the organocatalytic regioselective ring-opening polymerization of optically active methylglycolides to produce highly alternating PLGAs.
The organocatalytic ROP system is highly promising for application as a robust and versatile route to sequentially and structurally well-defined PLGAs for use in future biomedical applications.
"Metal-free anionic polymerization of n-hexyl isocyanate catalyzed by phosphazene bases"

68th Symposium on Macromolecules was held at online. Prof. Satoh, Prof. Isono, Kobayashi (D2), Mato (D2), Katsuhara(D1), Tio(M2), and Chaehun(M1) attened to the conference.

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We celebrated Prof. Satoh's birthday!

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Li-Che's (D3) article has selected for Supplementary cover of macromolecules. Congraturations!
"Highly Stretchable Semiconducting Polymers for Field-Effect Transistors through Branched Soft–Hard–Soft Type Triblock Copolymers"

A national collaborative research with Prof. Jae-Suk Lee (GIST) was published to Polymer Chemistry (RSC).
"Metal-free anionic polymerization of n-hexyl isocyanate catalyzed by phosphazene bases"

A collaborative research with Prof. Hiroyuki Kono of National Institute of Technology, Tomakomai College was published to ACS Applied Nano Materials. It is expected that NFBC will have improved surface dispersibility in resin and increased strength due to surface hydrophobicization in water.
"Nanofibrillated Bacterial Cellulose Surface Modified with Methyltrimethoxysilane for Fiber-Reinforced Composites"

The new flash chromatography machine have been installed to our lab!

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Mato (D2) has published an article to Communications Chemistry (Nature). Precise synthesis of spiro-type multicyclic polymers, such as 8-shaped and trefoil-shaped polymer, have been demonstrated based on intramolecular ring-opening oligomerization of specially designed linear and star-shaped polymers.
"Programmed folding into spiro-multicyclic polymer topologies from linear and star-shaped chains"

Prof. Brian has published an article to Nano letter (ACS). We have investigated the thin film morphology of a series of bicyclic topological copolymers using grazing incidence X-ray scattering technique. These polymers are useful for developing advanced nanostructured materials for microelectronics, displays, and membranes.
"Bicyclic Topology Transforms Self-Assembled Nanostructures in Block Copolymer Thin Films"

A collaborative research with Prof. Wen-Chang Chen (National Taiwan University) and Prof. Redouane Borsali (CERMAV-CNRS) was published in ACS Appl. Mater. Interfaces.
"Nanostructure- and Orientation-Controlled Resistive Memory Behaviors of Carbohydrate-block-Polystyrene with Different Molecular Weights via Solvent Annealing"

The official account of Polymer chemistry Lab at Hokkaido Univ. has been opened. This account will tweet about our article information.

link here!

A collaborative research with Prof. Wen-Chang Chen of National Taiwan University was published to Advanced Materials.
"High‐Performance Nonvolatile Organic Photonic Transistor Memory Devices using Conjugated Rod–Coil Materials as a Floating Gate"

Our alumnus Mr. Toku has sent us many mango from Taiwan. There are very delicious!! Many thanks,Toku-san!

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Li-Che (D3) has published an article to Macromolecules (ACS). We have synthesized a series of novel branched soft–hard–soft type triblock copolymers. This copolymers are expected to be used as a semiconducting polymer showing high elasticity.
"Highly Stretchable Semiconducting Polymers for Field-Effect Transistors through Branched Soft−Hard−Soft Type Triblock Copolymers"

Prof. Isono's article has selected for Supplementary cover of macromolecules. Congraturations!
"Carbohydrates as Hard Segments for Sustainable Elastomers: Carbohydrates Direct the Self-Assembly and Mechanical Properties of Fully Bio-Based Block Copolymers"

A collaborative research with Prof. Redouane Borsali (CERMAV-CNRS) was published in European Polymer Journal.
"Sweet Pluronic poly(propylene oxide)-b-oligosaccharide block copolymer systems: Toward sub-4 nm thin-film nanopattern resolution"

Prof. Isono has published an article to Macromolecules (ACS). We successfully synthesized a series of novel bio-based block copolymers consisting of maltooligosaccharides and poly(δ-decanolactone). These block copolymers are sustainable alternatives to a thermoplastic elastomer.
"Carbohydrates as Hard Segments for Sustainable Elastomers: Carbohydrates Direct the Self-Assembly and Mechanical Properties of Fully Bio-Based Block Copolymers"

Prof. Brian has published an article to ACS applied materials & interfaces (ACS). We have synthesized a series of novel oxygen-based polymers, which are useful for high performance resistive memory materials.
"Chemically Controlled Volatile and Nonvolatile Resistive Memory Characteristics of Novel Oxygen-Based Polymers"

Katsuhara (D1) has published an article to Polymer Chemistry (RSC). We successfully synthesized novel oligosaccharide-based block copolymer , which showed the smallest microphase-separated structures in block copolymer containing metallopolymer.
"Metallopolymer-block-oligosaccharide for sub10 nm microphase separation"

Our alumna Ms. Yao Zhang has sent us face masks from China. Thank you so much!

4 bachelor students and 2 master students joined to our laboratory.
Dr. Brian Ree that graduated last March became a specially appointed assitant professor of our group!

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We held the commencement. Katsuhara (M2) got awarded on Prof. Otsuka Prize.

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We held the farewell party for graduating students!

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Prof. Isono and got awarded on SPSJ (Award for Encouragement of Research in Polymer Science). Our research collaborator Prof. Borsali (CERMAV) also got awarded to SPSJ International Award. Congraturations!

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Takojima (M2) got awarded in CSJ Hokkaido division winter conference 2020.

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Bachelor and master students presented their thesises.

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Watanabe (D3) and Brian (D3) finished the Ph.D. defence. Good job!

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Ms. Li-Yuan Wang from National Taipei University of Technology (Taiwan) joined to our laboratory as an international student.
She will stay in our laboratory for 2 months.

CSJ Hokkaido division winter conference 2020 was held. Takojima (M2), Takagi (M2), Fujirawara (M1), Sudo (M1) gave their oral presentations.

54th SPSJ Hokkaido division conference was held. Tanaka (M2) and Chaehun (B4) gave oral presentations, Aisyah (B4) did poster presentation. Aisyah got awarded for her outstanding presentation.

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Mr. Suzuki joined to our laboratory as a technical assistant.

Welcome to our laboratory, Mr. Yu-Che Chen and Mr. Jia-Rui Chang from National Taiwan University and National Taiwan University of Science & Technology (Taiwan), respectively.
They will stay in our laboratory for about 2 months.

Year-end party was held.

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Hokkaido University-National Central University Symposium 2019 was held. Takagi (M2), Kaizawa (M1), Cheahun (B4) got awarded for their great poster presentations.

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The annual home party was held by Prof. Satoh!

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Mr. Seung-Jae Lee from GIST (Koera) joined to our laboratory as international students.
He will stay in our laboratory for 3 months.

Prof. Tajima has published an article to Biomacromolecules (ACS). We have demostrated the detailed structral analysis and applicaion of Nanofibrillated bacterial cellulose (NFBC) produced by a bacterium in a carboxymethylcellulose (CMC)-supplemented medium.
"Detailed Structural Analyses of Nanofibrillated Bacterial Cellulose and Its Application as Binder Material for a Display Device"

Dr. Xiaochao Xia joined to our group as an visiting researcher. He will stay 2 years.

Federation of Asian Polymer Societies (FAPS) Polymer Congress 2019 was held at Taipei (Taiwan). Prof. Satoh and Komaki (M2) atteneded to the conference. Komaki won the poster prize!

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5th DSA symposium was held at Miran, Italy. Prof. Isono and Watanabe (D3) attened to the conference.

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Mr. Tianle Gao joined us as a master course student.

4th 4th INTERNATIONAL SYMPOSIUM ON BACTERIAL NANOCELLULOSE (ISBNC) was held at Porto, Portugal. Prof. Tajima attened to the conference.

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Mato (D1) got the offer of JSPS Reserch Fellowship (DC2)! Congrats!

68th Symposium on Macromolecules was held at Fukui University, Fukui(Japan). Prof. Satoh, Prof. Isono, Watanabe (D3), and Komaki (M2) attened to the conference.

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Takojima (M2) has published an article to Polymer Journal (Splinger Nature). Facie synthesis of poly(trimethylene carbonate) was demonstrated using bio-compatible alkali metal carboxylates as efficient catalysts.
"Facile synthesis of poly(trimethylene carbonate) by alkali metal carboxylate-catalyzed ring-opening polymerization"

The new DSC have been installed to our lab!

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Korea-Japan Joint Symposium on Polymer Science (KJJS) 2019 was held at Yonsei University (Korea) during September 18-22. Prof. Satoh, Tanaka (D2), and Katsuhara (M2) attended to the symposium.

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We held the farewell party for Hsu (D2) who has just finished the double degree program in Japan for 2 years.

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We celebrated Prof. Satoh's birthday!

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Brian（D3）has published an article to Macromolecular Rapid Communications (Wiley). Phase transition behaviors of the semicrystalline polymers with a rotaxane wheel were elucidated based on the synchrotron X-ray scattering technique.
"Phase Transition Behaviors and Nanoscale Film Morphologies of Poly(δ‐valerolactone) Axles Bearing Movable and Fixed Rotaxane Wheels"

34th Summer University in Hokkaido was held on August 23-24th in Jyozankei. Many of us attened to the conference for poster presentaion.

Kaizawa (M1) won the oral presentation prize at the Reserch Meeting in Summer 2019 (The Chemical Society of Japan) on July.

International Symposium on Biopolymer Synthesis and Degradation was held on July 29th in Hokkaido University. Aoshima (M1) and Ninoyu (M2) gave their poster presentation. Ninoyu(M1) won the poster prize.

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Japan-Taiwan Bilateral Polymer Symposium 2019 (JTBPS2019) was held from July 23th to 27th at Shimane. Kobayashi (D1) and Mato (D1) gave their poster presentation. Mato (D1) won the poster prize.

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Ms. Yang Jiaxin and Mr. Xiong Jianli from Changchun University of Science and Technology (China) joined to our laboratory as international students.
They will stay in our laboratory for one and a half month.

2nd Asian-French Workshop on Polymer Science (AFW2019) was held from 18th to 21th, July. Many of us did poster presentation. Li-Che（D2）, Dai-Hua （D1）, Takagi（M2）, Aoshima（M1）, Kaizawa（M1）won the poster prize!
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26th celluose soicety of Japan annual meeting was held from 11th to 12th, July. Aoshima (M1) and Ninoyu (M1) gave their poster presentation.

Brian（D3）has published an article to Macromolecules (ACS). The film morphology formed by the diblock copolymers consisting of a rotaxane wheel was elucidated based on the synchrotron X-ray scattering technique.
"Macromolecular [2]Rotaxanes Linked with Polystyrene: Properties and Nanoscale Film Morphologies"

Ms. Wei-Chen Yang and Mr. Tsung-Han Chuang from National Taiwan University (Taiwan) joined to our laboratory as international students.
They will stay in our laboratory for about 2 weeks.

Prof. Hsin-Lung Chen visited us from the National Tsing Hua University (Taiwan).

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Ms. Jao Chih-Chun from National Taipei University of Science and Technology, Taiwan, joined to our laboratory as an international student.
She will stay in our laboratory for about 2 months.

Ms. Shibata visited us from the Mitsubishi Chemical Corporation.

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Learning Satellite 2019 was held in Taiwan. Kobayashi (D1), Aoshima (M1), Ninoyu (M1), Kaizawa (M1), Fujiwara (M1), and Sudo (M1) joined and gave their oral or poster presentations. Kobayashi and Sudo won the best poster award.

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Professor Borsali (CERMAV, France) visited us!

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The 67th Society of Polymer Science fo Japan Annual Meeting was held from 29th to 31th, May at Osaka International Convention Center. Brian(D3) and Li-Che(D2) gave the oral presentation, Prof. Isono, Tanaka (D2), Katsuhara(M2), Fujiwara(M1), and Kaizawa(M1) did poster presentation. Good job!
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We played the softball game with Lab. of interfacial electrochemisty!

Pictures here!

Yoshida（graduated in 2018）has published an article to Polymer Chemistry (RSC). The versatile ω-chain end modification of PS-PMMA was demonstrated by the terminal-selective transesterification.
"Installing a functional group into the inactive ω-chain end of PMMA and PS-b-PMMA by terminal-selective transesterification"

Professor Miura (Tokyo Tech.) who is a one of our group's alumni visited us! The Genghis Khan party was held.

Pictures here!

Cedric Vevert, Polytech Montpellier (France), joined to our laboratory as an international student.

He will stay in our lab for about 3 month.

The paper published by Watanabe (D3) has been highlighted in Synfacts! Congrats!
"Honey, I Shrunk the Polymers"

Saito（D3）has published an article to ACS Sustainable Chemistry & Engineering (ACS). A practical and environmentally benign synthetic strategy for polycarbonate has been established based on a nature-derived catalyst, trimethylglycine.
"Trimethyl Glycine as an Environmentally Benign and Biocompatible Organocatalyst for Ring-Opening Polymerization of Cyclic Carbonate"

Jhih-Yi Wang (National Taipei University of Technology, Taiwan) and Dai-Hua Jiang (National Taiwan University, Taiwan) joined to our laboratory as international student.

Ms. Wang and Mr. Jiang will stay in our lab for about 3 month and 2 years (due to double degree program participation), respectively.

New bachelor's and master's students joined to our group!

Pictures coming soon...

The graduation ceremony was held. Congraturations!

Pictures here!

We held the farewell party for the graduating students from our lab.

Pictures here!

Oyama（M2）has published an articel to ACS Sustainable Chemistry & Engineering (ACS).Compatiblizing performance of block copolymers consisiting of poly(hydroxyalkanoate) and polycaprolactone has been systematically investigated based on polymeric topological effect.
"Biodegradable Compatibilizers for Poly(hydroxyalkanoate)/Poly(ε-caprolactone) Blends through Click Reactions with End-Functionalized Microbial Poly(hydroxyalkanoate)s"

Brian(D2) has published an article to Polymer (ELSEVIER). The synchrotron X-ray measurements revealed that incorporating adamantane ring moiety into a macromolecule gives rise to highly random orientation of the polymer chain in thin film state.
"Nanoscale film morphology and property characteristics of dielectric polymers bearing monomeric and dimeric adamantane units"

Bachelor and master students presented their graduation and master thesises.

Pictures here!

Saito (D3) and Yoshida (D3) presented their Ph. D. thesises.

Pictures here!

５３rd SPSJ Hokkaido division conference was held. Watanabe(D2) and Brian(D2) gave oral presentations、Li-Che (D2), Tanaka(D1), Katsuhara(M1),Fujiwara(B4), Makino(B4) did poster presentations. Li-Che got awarded for his outstanding presentation.

Click here to see pictures !

CSJ Hokkaido division winter conference was held. Kajita(M2)、Shingu(M2)、Nakahira(M2)、Oyama(M2) gave their oral presentations.

A farewell party for Hsieh Hui-Ching was held.

Click here to see pictures !

Brian(D2) has published an article to Polymers (MDPI). With synchrotron radiation scattering, the cyclic amphiphilic block copolymer has been found to form structurally more stable and denser micelles compared with the linear analogues.
"Micelle Structure Details and Stabilities of Cyclic Block Copolymer Amphiphile and Its Linear Analogues"

Assistant prof. Isono has published an article to Polymer Chemistry (RSC). Star-block type oligosaccharide-polycaprolactone block copolymers have been found to form 10 nm-order microphase separated structures in spite of the high molecular weight more than 10000.
"Microphase Separation of Carbohydrate-Based Star-Block Copolymers with Sub-10 nm Periodicity"

Watanabe(D2) has published an article to Chemical Schience (RSC). Microphase separated structure of block copolymers has been successfully downsized via intramolecular cross-linking technique.
"Downsizing of Feature in Microphase-Separated Structures via Intramolecular Crosslinking of Block Copolymers"

2nd home party was held at professor Satoh's home.

Click here to see pictures !

A collaborated reserch with Kyoto University has been published to Journal of Polymer Science Part B: Polymer Physics (Wiley). Cyclic poly(3-hexylthiophene) (p-type semi-conductor) has been found to improve the power conversion efficiency of polymer-based organic solar cells compared to the linear polymer.
"Synthesis and characterization of cyclic P3HT as a donor polymer for organic solar cells"

Home party was held at professor Satoh's home.

Click here to see pictures !

Year-end party was held.

Click here to see pictures !

The paper published by Mato (M2) has been highlighted in Synfacts !
"Ring-Opening Metathesis Oligomerization to Closed Macromolecular Cages"

Brian(D2) has published an article to Polymers (MDPI)!
"A Comparative Study of Dynamic Light and X-ray Scatterings on Micelles of Topological Polymer Amphiphiles"

The 12th SPSJ International Polymer Conference (IPC2018) was held on 4-7 December in Hiroshima. Professor Satoh and Watanabe (D2) gave their oral presentations.

Japan-Korea Joint Symposium on Polymer Science 2018 (JKJS 2018) was held on 23rd-27th, July at hokkaido University. We appreciate participants and cooperators !
Click here to jump to the homepage !
Pictures are coming soon...

Hokkaido University-National Central University Symposium 2018 was held. Komaki (M1) and Katsuhara (M2) got awarded for their great poster presentations.

Pictures are coming soon...

4th International Symposium on DSA was held on November 11-13 in Sapporo. Prof. Satoh gave oral presentation, and Komaki (M1) did poster presentation.

Yoshida (D3) has published an article to Macromolecules (ACS)! Sub-10 nm patterning was achieved by chain-end modification of polystyrene-poly(methyl methacrylate) block copolymer with an oligosaccharide.
"Chain-End Functionalization with a Saccharide for 10 nm Microphase Separation: “Classical” PS‐b‐PMMA versus PS‐b‐PMMA-Saccharide"

Secretary Mrs. Matsuda and Research Assistant Mrs. Takahashi retired. We are so grateful to them that we could work together.

Welcome party for Mrs. Kudo (new secretary) and Ms. Hsieh, and farewell party for secretary Mrs. Matsuda and research assistant Mrs. Takahashi was held.
Click here to see pictures !

Ms. Hsieh Hui-Ching, from National Taiwan University, Taiwan, joined to our laboratory as an international student.
She will stay in our laboratory for about 3 months.

Mrs. Rika Kudo starts to work for our laboratory as the new secretary.

Mato (M2) has published an article to Chemical Science (RSC)! We succeeded in synthesizing cage-shaped polymers with the varied arm number by intramolecular polymerization of the terminal functionalized star polymers.
"A versatile synthetic strategy for macromolecular cages: intramolecular consecutive cyclization of star-shaped polymers"

Taiwan-Japan Bilateral Polymer Symposium 2018 was held in Taiwan. Watanabe (D2) got awarded for his great poster presentation!

We hold welcome party for the international students Mr. Hsu (from Taiwan) and Mr. Gao (from China).
Click here to see pictures !

Yoshida (D3) has published an article to Macromolecules (ACS)! Sub-10 nm patterning was achieved by chemical modification of polystyrene-poly(methyl methacrylate) block copolymer.
"Facile and Efficient Modification of Polystyrene-block-poly(methyl methacrylate) for Achieving Sub-10 nm Feature Size"

Hsueh-Te Hsu (from Taiwan) and Tian-le Gao (from China) joined to our laboratory.

Huge earthquake (magnitude 6.7) assaulted Hokkaido Island on 6th, September.
Fortunately, none of our members got injured.

GISAS 2018(International Small Angle Scattering Conference) was held in Korea on 4th-7th, September. Assistant professor Isono and Brian (D2) got awarded for their great poster presentations!
Pictures are coming soon...

CSE International Student Symposium was held and many students in our lab. gave poster presentations.
Genghis Khan party was then held and we we got to know people belonging to other laboratories.
Pictures are coming soon...

Shingu (M2) has published an article to Polymers (MDPI)! Facile synthetic method for synthesizing a trefoil-shaped triblock copolymer has been successfully developed by combination of precise polymerization technique and click reaction.
"Synthesis of μ-ABC Tricyclic Miktoarm Star Polymer via Intramolecular Click Cyclization"

We held Genghis Khan party along with welcoming international students!
Click here to see pictures !

Japan-Korea Joint Symposium on Polymer Science 2018 (JKJS 2018) was held on 23rd-27th, July at hokkaido University.
Oyama(M2) and Katsuhara (M1) were awarded poster prizes !

Research Meeting was held on July 21st at Kitami city. Li-Che (D2), Kobayashi(M2), Takojima(M1), and Katshuhara (M1) gave their oral presentations.

One of the biggest event in Graduate School of Chemical Schiences and Engineering, Summer School, was held on 14th and 15th, July.Saito (D3) and Tanaka (D1) organized the event, and Li-Che (D2) attended.
Li-Che won the outstanding poster award !

Yun-Chi Chiang, from National Taiwan University, Taiwan, joined to our laboratory. He will stay in our laboratory for about two months.

Dai-Hua Jiang, from National Taipei University of Science and Technology, Taiwan, joined to our laboratory. He will stay in our laboratory for several months.

25th Cellulose society annual meeting was held on 5th and 6th, July in Kyoto. Takagi (M1), Kajita (M2), and Ishii(M2) gave their poster presentation.
Pictures are coming soon...

We played the semifinal game in soft ball tournament.
Click here to see pictures !

Assistant prof. Yu-Cheng Chiu and his student Ching-Heng Chuang, from National Taiwan University of Science and Technology, Taiwan, joined to our laboratory. They will stay in our laboratory for about 2 months.
We held welcome party for them and farewell party for Ms. Liu.
Pictures are coming soon...

Prof. Borsali and Prof. Cosnier visited our laboratory from Cermav, France.
We held Genghis Khan party.
Click here to see pictures !

We played the second match in soft ball tournament.
Click here to see pictures !

We hold farewell party for Shih Chien-Chung.
Click here to see pictures !

Learning Satellite 2018 was held in Taiwan. Mato (M2), Katsuhara (M1), Takagi (M1), Takojima (M1), and Komaki (M1) joined and gave their oral or poster presentations. Mato won the best poster award.
Click here to see pictures !

67th Society of Polymer Science of Japan Annual Meeting was held from 23rd to 25th, May at Nagoya Congress Center, in which prof. Satoh, Mato (M2), Kobayashi (M2), Katsuhara (M1), Takagi (M1), and Takojima (M1) gave their oral presentations.
Click here to see pictures !

Assistant professor Isono has published an article to Macromolecules (ACS)! We achieved to synthesize multicyclic polymers by polymerizing α,ω-difunctionalized macromonomers.
"Multicyclic Polymer Synthesis through Controlled/Living Cyclopolymerization of α,ω-Dinorbornenyl-Functionalized Macromonomers"

We played the first match in soft ball tournament against Laboratory of Molecular Assembly.
Pictures are coming soon...

We held the Genghis Khan party along with welcoming the international students!
写真はコチラ！

Shih Chien-Chung, from National Taiwan University, Taiwan, joined to our laboratory as an international student.
He will stay in our laboratory for about 2 months.

Liu Tzu-Hsuan, from National Taipei University of Technology, Taiwan, joined to our laboratory as an international student.
She will stay in our laboratory for about 3 months.

Assistant professor Isono has published an article to Macromolecules (ACS)! We found that better quality morphological structures can be obtained by controlling chain tacticity of a polymer.
"Synthesis, Thermal Properties, and Morphologies of Amphiphilic Brush Block Copolymers with Tacticity-Controlled Polyether Main Chain"

5 bachelor students and 2 master students joined to our laboratory.

齋藤(D2)の論文が Macromolecules (ACS) に公開されました！カルボン酸金属塩を触媒に用いて環状エステルを精密に開環重合することに成功しました。
"Alkali Metal Carboxylate as an Effi cient and Simple Catalyst for RingOpening Polymerization of Cyclic Esters"

先日行われた研究発表会で、川上(M2)が優秀講演賞を受賞しました。おめでとうございます！

川上(M2)、勝原(B4)、田中(B4)、蛸島(B4)、が口頭発表で参加しました。お疲れさまでした。

写真はコチラ！

間藤(M1)、高木(B4) が口頭発表、小林(M1)、梶田(M1)がポスター発表で参加しました。間藤が最優秀講演賞を受賞しました。おめでとうございます！

写真はコチラ！

磯野助教の論文が Macromolecules (ACS) に公開されました！再生可能なバイオマス資源を原料に新規ブロックコポリマーを合成し、ナノテクノロジーに応用可能な微細周期構造を構築しました。
"Highly Ordered Cylinder Morphologies with 10 nm Scale Periodicity in Biomass-Based Block Copolymers"

分子集積化学研究室と合同で忘年会を行いました。
写真はコチラ！

Brian(D1)と昨年卒業した佐藤の論文が NPG Asia MAterials (NPG) に公開されました！種々の環状構造を有するブロックコポリエーテルを合成し、シンクロトロンX線を用いた構造解析により水中での自己組織化構造を詳細に解析しました。
"Well-defined and stable nanomicelles self-assembled from brush cyclic and tadpole copolymer amphiphiles: a versatile smart carrier platform"

12月12日と18日に佐藤先生宅でホームパーティーを行いました！
写真はコチラ！

台湾の国立中央大学との合同シンポジウム"Hokkaido University-National Central University Joint Symposium on Materials Chemistry and Physics 2017"が開催され、当研究室から多くの学生がポスター発表で参加しました。
写真はコチラ！

10月17日から3日間、東京のタワーホール船堀で開催された第7回CSJ化学フェスタに参加してきました。齋藤(D2)、吉田(D2)、渡部(D1)がポスター発表を行いました。また、吉田は優秀ポスター発表賞を受賞しました。おめでとうございます。
写真はコチラ！

台北科技大より陳伯瑜(Chen Bo-Yu) さん来日しました。三か月ほど滞在します。

田中(M2)が日本学術振興会特別研究員DC1に採用内定しました！おめでとうございます！！

フランスよりRedouane Borsali先生およびSerge Cosnier先生にお越しいただき、講演会をしていただきました。
写真はコチラ！

国立台湾大学より徐立哲 (Hsu Li-Che) さんが来日しました。当研究室でダブルディグリーの取得を目指して2年間滞在します。

9月20日から22日まで愛媛県松山市で開催された高分子討論会に参加してきました。当研究室からは齋藤(D2)、吉田(D2)、本田(M2)、小山(M1)、新宮(M1)が口頭発表で参加しました。吉田はポスター発表も行いました。

登別で北海道若手高分子研究会が開催されました。当研究室から多くの学生がポスター発表を行い、中平(M1)が優秀ポスター賞を、新宮(M1)が最優秀ポスター賞を受賞しました。おめでとうございます。

山形大学でJapan-Taiwan Bilateral Polymer Symposium 2017が開催され、間藤(M1)、小林(M1)、中平(M1)がポスター発表を行いました。小林はBest Poster Presentation Awardを受賞しました。おめでとうございます。

田島准教授の論文が Biomacromolecules (ACS) に公開されました！有機溶媒中に分散可能な両親媒性ナノフィブリル化バクテリアセルロースを開発し、合成高分子との複合材料化に成功しました。
"One-Step Production of Amphiphilic Nanofibrillated Cellulose Using a Cellulose-Producing Bacterium"

今年はルスツリゾートに行ってきました！！
写真はコチラ！

磯野助教の論文が Polymer Chemistry (RSC) に公開されました！様々な熱応答性ポリエーテルを精密合成し、主鎖の立体規則性や側鎖構造の違いが熱応答特性に与える影響を明らかにしました。
"Design and synthesis of thermoresponsive aliphatic polyethers with a tunable phase transition temperature"

北大でCSE International Student Symposium 2017が開催されました。当研究室から多くの学生がポスター発表を行い、新宮(M1)、中平(M1)が優秀ポスター賞を、川上(M2) が最優秀ポスター賞を受賞しました。また、短期留学で当研究室に滞在中の林倢宇(Lin Chieh-Yu)さんも優秀ポスター賞を受賞しました。おめでとうございます。 シンポジウム閉会後、ジンパを開催しました。
写真はコチラ！

国立台湾大学 (台湾) から蔣耘洁(Chiang Yun-Chi)さんが短期留学で来日しました。数ヶ月滞在します。

7月2日から7日までフランスのリヨンで行われた European Polymer Federation (EPF Lyon 2017) に磯野助教、齋藤(D2)、吉田(D2)がポスター発表で参加してきました。
写真はコチラ！

国立台湾大学 (台湾) から林玉如(Lin Yu-Ru)さんと廖仁煜(Liao Ren-Yu)さんが短期留学で来日しました。数ヶ月滞在します。

元智大学 (台湾) から林倢宇(Lin Chieh-Yu)さんが短期留学で来日しました。数ヶ月滞在します。

5月27-30日に千葉の幕張メッセで行われた "第66回高分子学会年次大会" で新宮(M1)が優秀ポスター賞を受賞しました。おめでとうございます。

3回戦の相手は材料化学工学研究室でした！
写真はコチラ!

第66会高分子年会(@幕張メッセ)の開催に併せ、5月29日に高分子化学講座の同窓会を行いました。お忙しい中ご参加ありがとうございました。
写真はコチラ！

第66会高分子年会(@幕張メッセ)に参加してきました。当研究室からは、田中(M2)、小山(M1)、新宮(M1)、中平(M1)、小林(M1)がポスター発表で参加しました。お疲れ様でした！
写真は後日追加します

2回戦の相手は生物計測化学研究室でした！
写真と結果はコチラ！

フランスのGrenobleにあるCermav(植物高分子研究所)からBorsali先生にお越しいただき、講演会をしていただきました。終了後は鍋パーティーをしました。
写真はコチラ！

M2田中の論文が Polymer Chemistry (RSC) に公開されました！分子内架橋反応を駆使し、溶液中におけるブロック共重合体の自己組織化挙動をコントロールしました。
"A facile strategy for manipulating micellar size and morphology through intramolecular cross-linking of amphiphilic block copolymers"

今年もついに研究室対抗ソフトボール大会が始まりました！1回戦の相手は有機反応&有機変換合同チームでした。
写真と結果はコチラ！

GWも開けて暖かくなってきたので、分子集積科学研究室と合同で今シーズン初めてのジンパをしました！
写真はコチラ！

今年はB4が4名、外部からM1が3名、韓国から留学生が1人配属となりました！
更に活気があふれる研究室になりそうですね。
写真はコチラ！

H28年度の卒業式が行われました。卒業生のみなさん、卒業おめでとうございます！就職、進学、それぞれの道でご活躍されることを期待しています！
写真はコチラ！

今年も定山渓で追いコンを行いました！修了されたDおよびM2のみなさま、今まで大変お世話になりました。
写真はコチラ！

応用化学B3の研究室配属が決定し、私たちの研究室には4名のB3が配属決定となりました。また、数ヶ月滞在していた留学生3名が帰国します。お疲れ様でした。
写真はコチラ！

昨年に引き続き今年も国立台湾大学に行って講義を受けてきました。今年度は更に元智大学、国立中央大学、国立台北科技大学の3大学を訪問をしポスター発表も行い、現地の学生と交流してきました。
写真はコチラ！

2015年度に国立台湾大学より当研究室に留学していたWangさんの論文がMacromoleculesに公開されました。国立台湾大学に留学していた高島(M2)も共同研究者としてこの論文の共著者になっています。
"Stretchable Conjugated Rod–Coil Poly(3-hexylthiophene)-block-poly(butyl acrylate) Thin Films for Field Effect Transistor Applications"

佐藤教授が平成28年度"北海道大学教育総長賞奨励賞"及び"北海道大学研究総長賞奨励賞"を受賞しました。おめでとうございます。
写真はコチラ！

佐藤(M2)の博士論文公開説明会が行われ、無事に終了しました。M1から約5年間、お疲れさまでした。
写真はコチラ！

本日、原子間力顕微鏡 (AFM)が納品されました。
写真はコチラ！

楠元(M2)、田(M2)、本田(M1)、川上(M1) が口頭発表、石井(B4)がポスター発表で参加しました。また、本田が優秀講演賞を受賞しました。おめでとうございます。
写真はコチラ！

相澤(M2)、田中(M1)、小山(B4)、新宮(B4)、中平(B4)が口頭発表で参加しました。お疲れ様でした！
写真は後日追加します

韓国と台湾から新たに計3名が研究室にやってきましたため、歓迎会を行いました。数週間から数ヶ月滞在予定です。
留学生の情報と写真はコチラ！

分子集積科学研究室のメンバーと合同で忘年会を行いました。1年間お疲れ様でした。年末年始しっかり休んで、年明けからまた頑張りましょう！
写真はコチラ！

11月14-16日に東京のタワーホール船堀で行われた "CSJ 化学フェスタ" で吉田(D1)が優秀ポスター賞を受賞しました。おめでとうございます。

D3佐藤の論文が Macromolecules (ACS) に公開されました！有機分子触媒を用いたエポキシドの精密重合、末端官能基化、分子内環化反応などを駆使して多様な特殊構造高分子を合成しました。
"Synthesis of Well-Defined Three- and Four-Armed Cage-Shaped Polymers via “Topological Conversion” from Trefoil- and Quatrefoil-Shaped Polymers"

今年度8月31日に新しいグローブボックスが納品されました。ボックス内で乾燥溶媒を回収できるドライソルベントシステム付きです。
写真はコチラ！

北大の体育会が主催する学内バレーボール大会に参加してきました！
全28チーム中、結果は...
結果と写真はコチラ！

共同研究のため半年間フランスのGrenobleにあるCERMAVに滞在していた磯野助教が帰国しました。お疲れ様でした。
写真は後日追加します

北大ALPの一期生である吉田(D1)主催で台湾の元智(Yuan-Ze)大学との合同学生シンポジウムを開催しました。当研究室からは齋藤(D1)、吉田(D1)、渡部(M2)、田(M2)、田中(M1)、小山(B4)、中平(B4)、新宮(B4)が英語口頭発表で参加しました。シンポジウムの最後には、北大に滞在していたことのある元智大学助教のYu-Chen Chiu先生に特別講演をして頂きました。みなさん丸一日お疲れ様でした。B4は初めての研究発表でしたが頑張りました。詳しくはコチラ
写真はコチラ！

11月21日付で佐藤教授が先端錯体工学研究会より "2015年度 先端錯体工学研究会賞" を受賞しました。受賞タイトルは「銅錯体触媒を用いた特殊構造高分子の精密合成」です。おめでとうございます。
写真はコチラ！

11月21-22日に開催されたInternational SPACC Symposiumに渡部(M2)と本田(M1)が英語ポスター発表で参加してきました。
写真はコチラ！

11月14日から3日間、タワーホール船堀で開催されたCSJ化学フェスタに参加してきました。齋藤(D1)、吉田(D1)、渡部(M2)、川上(M1)、本田(M1)、村野(M1)がポスター発表を行いました。
写真はコチラ！

研究室OBの高田健司さん(現 金沢大学助教)が来札されました。
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佐藤先生宅にて毎年恒例のホームパーティーを行いました。今年は人数が多いため2回に分けての開催となりました。佐藤先生と先生の奥さん、ありがとうございました！
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共同研究のため約1ヶ月半フランスのGrenobleにあるCERMAVに滞在していた川上(M1)が帰国しました。お疲れ様でした。
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齋藤(D1)と渡部(M2)が日本学術振興会特別研究員DC2、DC1にそれぞれ採用内定しました！おめでとうございます！！
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フランスのCERMAVから、数ヶ月間当研究室に滞在していた Prof. Redouane Borsali が帰国しました。

今年の夏日化の授賞式が行われました。当研究室からは本田(M1)が優秀講演賞を受賞しました。おめでとうございます！
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高分子討論会の開催に併せ、9月16日(金)に高分子化学講座の同窓会を行いました。ご参加ありがとうございました。
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神奈川大学で開催された第65回高分子討論会に参加してきました。楠元(M2)、吉田(D1)がポスター発表、相澤(M2)が口頭発表で参加しました。
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台湾の National Tsing Hua University で行われた Taiwan-Japan Bilateral Polymer Symposium 2016 (TJBPS2016) に参加してきました。川上(M1)、本田(M1)、田中(M1) がポスター発表で参加しました。また、川上が First Prize for Student Poster Contest、本田が Second Prize for Student Poster Contest を受賞しました。おめでとうございます。
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定山渓ビューホテルで行われた 31st Summer University in Hokkaido/北海道高分子若手研究会に参加してきました。当研究室からも多くの学生がポスター発表しました。M1の村野は最優秀ポスター賞を受賞しました。おめでとうございます！
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韓国の Gwnagju Institute of Science and Technology (GIST) にて開催された10th Korea-Japan Joint Symposium on Polymer Science 2016(KJJS2016) (Asia Symposium on Living Anionic Polymerization 2016 (ASLAP2016) と共催) にD1吉田、M2渡部が参加してきました。渡部がPoster Awardを受賞しました。おめでとうございます！
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昨年度当研究室に共同研究のため滞在していた Wang さん(国立台湾大学)の論文が NPG Asia Materials (NPG) に公開されました。
"High-performance stretchable resistive memories using donor?acceptor block copolymers with fluorene rods and pendent isoindigo coils"

今年はニセコ方面に行ってきました！！
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8月5日に北海道大学のフロンティア応用科学研究棟にて、北海道大学、国立台湾大学、CERMAV(フランス)共催の合同シンポジウム「HNCJS2016」を開催します。詳しくは上のバナーをクリックしてください。

北大構内のビアガーデン"緑のビアガーデン"に行ってきました！
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Cermav(フランス)のProf.Borsali、台湾大学からのの留学生Chiangさん、Hsuさんの歓迎ジンパを行いました。
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当研究室の楠元(M2)と村野(M1)がセルロース学会でポスター発表を行いました。村野は優秀ポスター賞を受賞しました。おめでとうございます

分子集積化学研究室との3位決定戦(非公式)を行いました！その後は両研究室合同でHungさんのウェルカムジンパを行いました！
結果と写真はコチラ!

国立台湾大学から洪誌鍵(Hung Chih Chien)さんが短期留学で来日中です。数ヶ月~半年滞在します。

M2渡部の論文が Polymer Chemistry (RSC) に公開されました！高分子鎖の分子内架橋反応を用いた、自在にサイズ制御された単分子ナノパーティクル合成手法の提案です。
"Intramolecular olefin metathesis as a robust tool to synthesize single-chain nanoparticles in a size-controlled manner"

先端材料化学研究室との準決勝でした！
結果と写真はコチラ!

磯野助教が6月5日から6か月間フランスに出張します。今日は激励会を行いました！
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磯野先生の論文が Macromolecules (ACS) に公開されました。ポリエステルとオリゴ糖から構成される特殊構造高分子の水溶液中における自己組織化挙動に関する研究です。フランス Cermav の Prof. Borsali との共同研究です。
"Self-Assembly of Maltoheptaose-block-polycaprolactone Copolymers: Carbohydrate-Decorated Nanoparticles with Tunable Morphology and Size in Aqueous Media"

化学反応工学研究室との2回戦でした。
結果と写真はコチラ！

神戸国際会議場で行われた高分子年会に参加してきました。当研究室からは佐藤悠(D3)、渡部(M2)、梅坪(M1)、川上(M1)、田中(M1)、本田(M1)が参加しました。
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いよいよ応用化学系研究室対抗ソフトボール大会の季節がやってきました！1回戦は有機合成化学研究室！
結果と写真はコチラ！

分子材料化学研究室は本日より、佐藤敏文教授、田島健次准教授、磯野拓也助教により高分子化学研究室として再出発しました。新B4も5名配属され、歓迎会を行いました。
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平成27年度の卒業式が行われました。卒業生の皆さんおめでとうございます。就職、進学頑張ってください。
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定山渓で追いコンを行いました。
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昨年度末をもってご退職された覚知豊次先生のこれまでの功績を祝して、3月19日に最終講義および祝賀会を行いました。たくさんのご参加ありがとうございました。写真は後日追加します。

北海道大学サマーインスティテュートの一環として国立台湾大学で講義を受けてきました。
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新年度からの新B4配属メンバーが決定しました。歓迎会を行いました。4月から一緒に頑張りましょう！
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B4とM2が卒論・修論発表を行いました。お疲れさまでした。
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B4とM2が卒論・修論を提出しました。お疲れさまでした。B4の卒論発表は8-9日、M2の修論発表は10日に行われます。

齋藤(M2)が日本化学工業協会の化学人材育成プログラム奨学生に採用内定しました。おめでとうございます。

北海道大学のフロンティア応用科学棟で行われた高分子学会2015年度北海道支部研究発表会に参加してきました。渡部(M1)、川上(B4)が口頭発表を、田(M1)、梅坪(B4)、田中(B4)、村野(B4)がポスター発表を行いました。川上、村野、梅坪は初めての学会発表でした。皆さんお疲れ様です。また、渡部が最優秀講演賞、梅坪が優秀ポスター賞を受賞しました。おめでとうございます！
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北海道大学のフロンティア応用科学棟で行われた日本化学会北海道支部の冬季研に参加してきました。笹森(M2)、松野(M2)、本田(B4)が口頭発表を、渡部(M2)がポスター発表を行いました。
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共同研究のため国立台湾大学(台湾)に短期留学していた高島(M1)が本日帰国しました。
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佐藤教授が北海道大学研究総長賞奨励賞を受賞しました。この賞は、「北海道大学の発展に寄与する優れた研究業績(論文・著書等)を発表し、将来、世界的に発展の期待される教員」等が対象です。おめでとうございます。
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磯野助教が公益財団法人井上科学振興財団より井上研究奨励賞を受賞しました。この賞は、理学、医学、薬学、工学、農学等の分野で過去３年の間に博士の学位を取得した３７歳未満の研究者で、優れた博士論文を提出した若手研究者に対して贈られる賞です。おめでとうございます！

10月13-15日に開催された、CSJ化学フェスタでポスター発表した相澤(M1)が優秀ポスター発表賞を受賞しました。おめでとうざいます。

中国から馬叡(Ma Rui)さんが短期留学で来日中です。数ヶ月滞在します。

福岡の北九州国際会議場で開催された JKJS2015 で、齋藤(M2)、吉田(M2)、渡部(M1)がポスター発表しました。
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吉田(M2)が日本学術振興会の特別研究員(DC1)に採用内定しました。

東京のタワーボール船堀で開催された第5回CSJ化学フェスタで、吉田(M2)、蓬田(M2)、相澤(M1)、高島(M1)、渡部(M1)がポスター発表しました。また、会期中に東工大の早川先生、石曽根先生、柿本先生の研究室を見学させていただきました。お忙しいところありがとうございました。
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共同研究のためGIST(韓国)に留学していた渡部(M1)が本日帰国しました。
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生物機能高分子部門の研究室で合同ジンパをしました。
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フランス、グルノーブルのCermavで開催されたFrance-Japan joint Seminar on Functional Block copolymer 2015 で佐藤(D2)、吉田(M2)が口頭発表しました。
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東北大学川内キャンパスで開催された第64回高分子討論会 で、斎藤(M2)が口頭発表、吉田(M2)がポスター発表しました。
写真はコチラ！

7月18日に開催された、日本化学会北海道支部 2015年 夏季研究発表会で口頭発表した佐藤悠(D2)と渡辺(M1)が優秀講演賞を受賞し、授賞式が行われました。おめでとうざいます。

9月2日-6日に北海道大学にて、佐藤敏文教授と Wen-Chang Chen 教授(台湾大学) 主催の JTBPS2015 が開催されました。当研究室からは佐藤悠(D2)、齋藤(M2)、松野(M2)、吉田(M2)、相澤(M1)、大場(M1)、高島(M1)、本田(B4)がポスター発表し、佐藤悠(D2)と吉田(M2)が Outstanding Poster Award (優秀ポスター賞)を受賞しました。おめでとうございます。また、運営に携わった分子材料化学研究室と高分子機能化学研究室(覚知研)の皆さんお疲れ様でした。
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8月28日-29日に定山渓グランドホテル瑞苑にて開催された北海道高分子若手研究会で、相澤(M1)、大場(M1)、高島(M1)、楠元(M1)、田(M1)、本田(B4)、田中(B4)がポスター発表しました。また、本田(B4)が初めての学会参加でしたが優秀ポスター賞を受賞しました。おめでとうございます。
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今年はニセコ方面に行ってきました。
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7月18日に北海道教育大学函館校にて開催された日本化学会北海道支部 2015年 夏季研究発表会で、佐藤悠(D2)、相澤(M1)、渡辺(M1)が口頭発表しました。
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台湾大学からLi君が短期留学のため来日し、歓迎会を行いました。10月まで滞在する予定です。
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5月27日-29日に開催された高分子年次大会にて、斎藤(M2)と松野(M2)が優秀ポスター賞を受賞しました。おめでとうございます。
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5月31日より、北海道大学フロンティア応用化学研究棟にて JFJS 2015 が開催されました。
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高分子年会の開催に併せて、札幌市内にて高分子機能化学研究室・分子材料化学研究室の研究室同窓会が開催されました。合計60人以上のOB、OG、現役教員・学生が参加し、大いに盛り上がりました。同窓会中、高分子機能化学研究室の覚知教授の高分子学会功績賞受賞、陳特任助教の深セン大学(中国広東省)助教就任、山形大学の羽場先生の教授就任のお祝いも行いました。おめでとうございます。皆さん遠方よりご足労いただき、ありがとうございました。
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5月27日より3日間、札幌コンベンションセンターで高分子年会が開催されました。当研究室からは佐藤(D2)、吉田(M2)が英語口頭発表、斎藤(M2)、笹森(M2)、松野(M2)、蓬田(M2)、相澤(M1)、大場(M1)、高島(M1)、渡部(M1)がポスター発表で参加しました。また今回は札幌開催ということで、教員・学生共に運営サポートを行いながらの参加となりました。皆さんお疲れ様でした。
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初戦はVS固体反応化学研究室。終始打ち続けて15-0の快勝でした！もう少しで完全試合達成でした。次はVS界面電子化学研究室です。今年は9人中7人が野球経験者という最強の布陣なので、優勝目指して頑張りましょう！
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田島准教授が｢酢酸菌による発酵ナノセルロース(NFBC)の大量生産について｣という研究題目で精糖技術研究会より第112回精糖技術研究会賞を受賞しました。おめでとうございます！

生物機能高分子部門 6研究室合同ジンパが開催されました。去年に引き続き3回目の開催です。先生方も学生も多く参加し、非常に盛り上がりました。
近日中に写真を追加します(6/3)

新たに5人のB4と1名のM1が配属され、歓迎会が行われました。>>メンバーページへ
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2/10に修士論文発表会、2/12に卒業論文発表会が行われました。M2,B4の皆さんお疲れさまでした。
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1月27-28日に冬季研究発表会が行われ、当研究室からは斎藤(憲)(M2)、相澤(B4)が口頭発表で参加しました。
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1月26日に第49回北海道支部研究発表会が行われ、当研究室からは田原(M2)、笹森(M1)、渡部(B4)が口頭発表、斎藤(憲)(M2)、斎藤(達)(M1)、蓬田(M1)、大場(B4)、高島(B4)がポスター発表で参加しました。蓬田と高島が優秀ポスター賞を受賞しました。おめでとうございます。
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韓国のPOSTECH(浦項工科大学)より Kwon Kyungho 君が来ています。2月まで滞在予定です。

11/19-11/23に台湾の国立成功大学(National Cheng Kung University)で行われたTJBPSに当研究室の張瑶(M2)と吉田康平(M1)が参加してきました。吉田が優秀ポスター発表賞を受賞しました。

10/30-11/3に東京の工学院大学で行われたSPACC21に当研究室の中村亮介(M2)と吉田康平(M1)が参加してきました。

10/14-16日に東京のタワーホール船堀で行われた第４回CSJ化学フェスタ2014に、当研究室の斎藤憲吾(M2)と浅井俊介(M2)が参加してきました。斎藤が優秀ポスター発表賞を受賞しました。おめでとうございます。

「北海道大学物質科学フロンティアを開拓するAmbitioousリーダー育成プログラム」のプログラム第 1 期生に当研究室の吉田 (M1) が採用され、本日採用式が行われました。

本日から、中国人留学生の田林 (Tian Lin) 君が研究生として仲間入りしました。今後試験を受けて、来年4月から修士課程1年生となる予定です。

7月12日に行われた日本化学会北海道支部夏季研究発表会で吉田 (M1) が優秀講演賞を受賞し、本日授賞式が行われました。

台湾の台湾大学より Wang Jau-Tzeng 君が来ています。導電性高分子関連の共同研究を進めています。

当研究室の中村亮介(M2)がフランスのCrmavに約2か月程短期留学しました。

サマユニに参加してきました。当研究室からも大勢発表に参加しました。
また、張（M2）および笹森（M1）が優秀ポスター賞を受賞しました。

ルスツリゾートに講座旅行に行ってきました。
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当研究室の斎藤憲吾(M2)が台湾の台湾大学に約2か月程短期留学しました。

日本化学会北海道支部夏季研究発表会が7月12日に苫小牧高専で開催されました。当研究室からは中村亮介(M2)、齋藤達也(M1)、吉田康平(M1)および渡辺耕平(M1)が参加してきました。
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高分子年会が5月27日~30日に愛知県名古屋市で開催されました。当研究室からは磯野拓也(助教)、佐藤悠介(D1)、張瑶(M2)、齋藤達也(M1)、松野拓彦(M1)および吉田康平(M1)が参加してきました。また、5月30日には同窓会を行いました。

Japan-France Joint Seminar on Functional Block Copolymer 2014 が5月21日、22日に北海道大学で開催されました。
・詳細はこちら → JFJS2014 HP

博士研究員の磯野拓也が分子材料化学研究室の特任助教に就任しました！

今日から新しくB4の学生4名が配属されました！

学部生および修士学生の卒業式が行われました。また、本研究室の佐藤悠が大塚賞を受賞しました。

当研究室の佐藤悠および張瑶がダラスで開催されたACS国際学会に参加してきました。

当研究室の吉田康平(B4)および渡辺耕平(B4)がそれぞれ最優秀講演賞、優秀ポスター賞を受賞しました！おめでとうございます！

佐藤敏文教授の記事が、高分子学会詩「高分子」(63巻1月号2014年)に掲載されました。
・詳細はこちら

当研究室の佐藤悠介（M2）が東工大で開かれた日韓ジョイントシンポジウムJKJSに参加してきました。

田島健次准教授の「ナノフィブリルセルロース」の研究に関する記事が北海道新聞、他に掲載されました。
・詳細はこちら

佐藤敏文教授が「バイオベースマテリアルを用いた機能性単分子ミセルの開発」において高分子学会旭化成賞を受賞されました。おめでとうございます。
・詳細はこちら → 高分子学会HP　内容記事（pdf）

当研究室の齋藤憲吾（M1）、張瑶（M1）、佐藤悠介（M2）が優秀講演賞に選ばれました。

当研究室の齋藤憲吾（M1）、佐藤悠介（M2）が優秀ポスター賞を受賞しました。

当研究室の張瑶(M1)がドイツのハンブルグ大学へ短期留学しました。

中国からの留学生（田林たばやし）が当研究室に来ました。9月まで共に研究します。

当研究室からは齋藤憲吾（M1）、張瑶（M1）、佐藤悠介（M2）が参加してきました。

中国からの留学生（Wu Zhonyu）が当研究室に来ました。8月まで共に研究します。

高分子年会が5/29~5/31に開催されます。本研究室からは佐藤悠介(M2)および小瀬(PD)が参加します。

佐藤敏文先生を教授に迎え、今日からメンバーも新たに分子材料化学研究室が発足します！