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  3. Takaichi Watanabe

Takaichi Watanabe

Associate Professor, Faculty of Environmental, Life, Natural Science and Technology, Okayama University *Profile is at the time of the award.

2025Inamori Research GrantsScience & Engineering

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Research topics
Development of Ion Conductive Vitrimers
Summary
Vitrimer is a polymeric material with dynamic covalent bonds that undergo reversible bond exchange upon heat or external stimuli, enabling recyclability and self-healing properties. I study the development of a novel ion-conductive vitrimer by introducing a dynamic cross-linking structure into a main-chain polymeric ionic liquid with high ion conductivity. This study aims to elucidate the relationship among monomer design, self-healing properties, and ion conductivity.

Comment

I am deeply grateful for being selected for the Inamori Research Grant. I will devote myself to my research to propose a novel ion-conductive vitrimer.

Outline of Research Achievments

In this study, an ion-conductive vitrimer was developed based on a main-chain polymerized ionic liquid (TPIL) derived from clickable ionic liquid monomers and modified with dynamic crosslinking structures. The resulting material exhibited excellent mechanical properties and thermally induced self-healing behavior. Furthermore, introducing oxyethylene chains into the monomer backbone decreased the glass transition temperature of the elastomer and enhanced ionic conductivity.


Hikari Tsunekawa, et al. (2026) Ion-Conductive Vitrimers Based on Backbone-Type Triazolium Poly(ionic liquid)s: Counterion-Dependent Dynamics and Backbone Flexibility ACS Applied Polymer Materials 8(9) https://doi.org/10.1021/acsapm.5c04860


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