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We are creating functional materials that are synthesized via precise polymerization techniques

In our laboratory, Synthesis of various specially-structured polymers; molecular design of functional polymers such as stimuli-responsive polymers and conductive polymers; the study of micro-phase separation using block copolymers; creation and application of environmental zero-waste macromolecular materials with multi-functions.

Information

The Award of the Society of Polymer Science, Japan(2023) award

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!

Article published award

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"

Article published award

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"

Article published award

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"

Article published award

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"

Article published award

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"

Article published award

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"

Article published award

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"

Article published award

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"

Poster presentation prize (the 13th CSJ Chemistry Festa 2023) award

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

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!

Article published award

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

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.
Pictures here!

Article published award

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

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.
Pictures here!

Article published award

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)/ Annual Meeting of 30th The Cellulose Society of Japan

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!
Pictures here!

The 72nd Symposium on Macromolecules September 26–28, 2023

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!
Pictures here!

Prof. Isono: "PRESTO" selected award

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

Farewell party for Pan Quan-Jhen and Chang Ting-Wei

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

TJBPS 2023

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!
Pictures here!

Happy Birthday!

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

The 2023 Annual SPACC Meeting/The 3rd International OUS Frontier Symposium

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!
Pictures here!

The 14th CSE International Summer School & The 11th ALP International Symposiumaward

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!
Pictures here!

38th Summer University in Hokkaido & 2023rd Hokkaido Young Polymer Scientistsaward

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!
Pictures here!

Poster presentation prize (IPC2023) award

Gao(D2) won the poster presentation prize at the 13th SPSJ International Polymer Conference (IPC2023) on July. Congratulations!

Farewell party for Chen Wei-Wen

We held a farewell party for Chen Wei-Wen from National Taipei University of Technology. Thank you for your hard work!
Pictures here!

Prof.Cheng-Liang Liu's lecture

The lectures by Professor Cheng-Liang Liu of National Taiwan University were held from August 21 to 24. Thanks for the interesting lecture!

Pictures here!

Article publishedaward

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"

Master Thesis (Ebii)

Ebii(M2) presented his thesis. Great job!
Pictures here!

Featured in PF Highlight 2022!award

Our research was featured in Photon Factory Highlights 2022.
more detail here, PF Highlight 2022 Website, article here

Press Releaseaward

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

Softball Competition (Final)award

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!!
Pictures here!

Article publishedaward

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"

Article publishedaward

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"

Article publishedaward

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)

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.

Pictures here!

Mango from Taiwan (from Prof. Cheng-Liang Liu)

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

Pictures here!

Article publishedaward

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"

Article publishedaward

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"

Article publishedaward

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"

Taiwan interns welcome & softball victory commemorative jinpa!

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

Pictures here!

Softball Competition (semifinal)

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!

Pictures here!

International student from Taiwan

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!

Pictures here!

poster presentation prize (72nd Society of Polymer Science of Japan Annual Meeting)award

Iizuka (M1) and Nunokawa(M1) won the poster presentation prize at the 72nd Society of Polymer Science of Japan Annual Meeting on May.
Pictures here!

Softball Competition (2nd round)

The inter-laboratory softball competition was held! In the second round, we played against the Laboratory of Interfacial Electrochemistry and won the game!

Pictures here!

Mango from Taiwan

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

Pictures here!

Front cover (Polymer Chemistry)

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"

Article publishedaward

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 SPSJ Annual Meeting

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.

Pictures here!

Farewell party for Huan Li

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

Pictures here!

Article publishedaward

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)"

Softball Competition (1st round)

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(Polymer Chemistry)

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

Article publishedaward

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"

Article publishedaward

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, as part of Focal Point on Bioplastics in Japan in the online version of Natureaward

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 ICReDD List-PF PI

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)

Article publishedaward

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"

Article publishedaward

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"

Sci-Mix in Kanazawa 2023

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

Pictures here!

New members joined

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!

Pictures here!

Prof. Satoh's lecture in Taiwan

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

Pictures here!

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▼ 2013.4-(click here!)