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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.

Laboratory of Polymer Chemistry invites applications for the academic position of assistant professor.
Deadline: December 9st, 2021 ( Click here)
JREC-IN: https://jrecin.jst.go.jp/seek/SeekTop?ln=1

Information

Article publishedaward

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"

Congrats for doctoral and master thesis

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 Symposiumaward

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.

Pictures here!

28th Cellulose society annual meetingaward

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.

Pictures here!

Article publishedaward

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"

JSPS Reserch Fellowship

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

36th Summer University in Hokkaido

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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Reserch Meeting in Summer 2021 (The Chemical Society of Japan)award

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

Pictures here!

Press Release

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

Supplementary cover

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"

internship

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

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Farewell party for Prof. Brian

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

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Reserch Meeting in Summer 2021 (The Chemical Society of Japan)

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

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

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mango present

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

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Article publishedaward

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"

Article publishedaward

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"

Press Release

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

Article publishedaward

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"

Article publishedaward

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"

Article publishedaward

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"

New machine (Tensile test machine)

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

Pictures here!

70th SPSJ Annual Meeting

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.

Article publishedaward

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"

Article publishedaward

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"

Article publishedaward

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

Present for Prof. Isono

We celebrated the promotion of Prof. Isono!

Pictures here!

Article publishedaward

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"

Article publishedaward

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"

New members joined

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

Pictures here!

▼ 2020.4-(click here!)
▼ 2019.4-(click here!)
▼ 2018.4-(click here!)
▼ 2017.4-(click here!)
▼ 2016.4-(click here!)
▼ 2015.4-(click here!)
▼ 2014.4-(click here!)
▼ 2013.4-(click here!)