2023/03/23
The commencement and farewell party
We held the commencement and farewell party for graduating students!
Pictures here!
Information
2023/02/27
Article published
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"
2023/02/15
Most Read Articles (Macromolecules)
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)!
2023/2/10
Bachelor and Master Thesises
Bachelor and master students presented their thesises.
Pictures here!
2023/01/30
Farewell party for international students from Taiwan
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!
Pictures here!
2023/01/30
Article published
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)"
2023/01/09
Article published
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"
2022/12/22
Article published
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"
2022/12/22
PPC17 in Australia
Prof. Satoh gave an oral presentation at PPC17 (The 17th Pacific Polymer Conference, Brisbane, Australia) on December 12.
Pictures here!
2022/12/21
Article published
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"
2022/12/9
Prof. Satoh in France
Prof. Satoh went to CERMAV-CNRS (Grenoble) in France to give a lecture titled "Precise Synthesis of Architecturally complex Polymer"
Pictures here!
2022/11/24
Article published
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"
2022/11/17
Article published
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"
2022/11/09-11
AsiaNANO2022
Prof. Satoh, Suzuki (D1) and Nishimura (D1) participated in AsiaNANO2022 which was held on November 9-11. The venue was Busan, South Korea!!
Pictures here!
2022/10/27
Article published
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),"
2022/10/25
Press Release
Our research was announced by Hokkaido University.
more detail here,
article here.
2022/10/23
Article published
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,"
2022/10/18-20
12th CSJ Chemistry Festa
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.
Pictures here!
2022/10/04
JSPS Reserch Fellowship
Suzuki(D1) and Ebe(D1) got the offer of JSPS Research Fellowship(DC2)!Congratulations!!
2022/09/30
International student from National Taipei University of Technology
New member joined (Tsai Cheng-Hang, Tzeng Yung-Ru (international student from National Taipei University of Technology)). Welcome to our lab!
Pictures here!
2022/09/26
Article published
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"
2022/09/05-07
71st Symposium on Macromolecules
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.
Pictures here!
2022/09/02
Prof.Liou's lecture
The lectures by Professor Guey-Sheng Liou of National Taiwan University were held from August 29 to September 2.Thanks for the interesting lecture!
Pictures here!
2022/09/02
Professor Emeritus Akira Hirao visited our laboratory
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!
Pictures here!
2022/08/30
Article published
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"
2022/08/30
Article published
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"
2022/08/17,18
37th Summer University in Hokkaido
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.
Pictures here!
2022/08/03
Master Thesises (Nishimura)
Nishimura(M2) presented his thesis. Great job!
Pictures here!
2022/08/01
Internship student from Harbin Engineering University
New member joined (Yan-Sin Huang (intership student from National Taiwan University of Science & Technology)).
Pictures here!
2022/08/01
Article published
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"
2022/07/27
National Taiwan University now has a tree named "Toshifumi Satoh"!
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!
Pictures here!
2022/07/23
The Chemical Society of Japan Hokkaido Branch 2022 Summer Meeting
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.
Pictures here!
2022/07/21,22
29th The Cellulose Society of Japan Annual Meeting
29th The Cellulose Society of Japan Annual Meeting was held from 21st to 22nd, July in Kanazawa. Tsuji(M1) gave poster presentations.
Pictures here!
2022/06/21
poster presentation prize (71th Society of Polymer Science of Japan Annual Meeting)
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.
Pictures here!
2022/06/27
mangoes from Taiwan
Prof. Cheng-Liang Liu (National Taiwan University) gave us mangoes! Thank you so much!
Pictures here!
2022/06/14
Prof. Borsali and Prof. Liou have arrived
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.
Pictures here!
2022/06/11
The Society of Fiber Science and Technology Japan Annual Meeting (2022)
The Society of Fiber Science and Technology Japan Annual Meeting (2022) was held from 8th to 10th, June in Tokyo and online.
Pictures here!
2022/06/01
Internship student from Harbin Engineering University
New member joined (Li Huan (intership student from Harbin Engineering University)).
Pictures here!
2022/05/30
71th SPSJ Annual Meeting
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.
Pictures here!
2022/05/25
Lee Chaehun (D1) was interviewed by Hokkaido University！
Lee Chaehun (D1) shared their experiences, and thoughts about studying at HU, living in Sapporo, and more.
Hokkaido University in Students’ Words — South Korea
2022/5/16
Article published
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"
2022/5/16
Article published
Hamidah (M2) have published an article to Composites Part A : Applied Science and Manufacturing (ELSEVIER) (IF=7.664).
We synthesized polycaprolactone (PCL)-grafted HP-NFBC (HPNFBC-g-PCL) via ring-opening polymerization from the hydroxy groups on the HP-NFBC surface as initiation sites. The mechanical properties improved by grafting PCL.
"Improving the mechanical properties of polycaprolactone using functionalized nanofibrillated bacterial cellulose with high dispersibility and long fiber length as a reinforcement material"
2022/5/10
Article published
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"
2022/05/09
New assistant professor Li Feng
Assistant Prof. Li Feng has arrived at our Laboratory from May 2.
We are very happy to work with you!
Pictures here!
2022/04/22
The website of the Applied Chemistry Course has been renewed
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】
2022/04/13
Article published
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"
2022/04/01
New members joined
4 bachelor students and 1 master students joined to our laboratory.
Prof. Tajima has moved to the Biomolecular Chemistry Laboratory from this year.
Pictures here!
