Synthesis of topological helical polymers by precise polymerization and their characterization

2023 Fiscal Year Final Research Report

• Project/Area Number: 21K04685
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 26040:Structural materials and functional materials-related
• Research Institution: Kanazawa University
• Principal Investigator: Nishimura Tatsuya 金沢大学, 物質化学系, 准教授 (00436528)
• Project Period (FY): 2021-04-01 – 2024-03-31
• Keywords: リビング重合 / らせん高分子

Outline of Final Research Achievements

Living polymerisation of helical polymers was used to synthesise polymeric materials with distinctive structures, such as cyclic, brush and Janus polymers. The resulting brush polymers and bottle brush polymers were useful as chiral materials such as optical resolution materials. Furthermore, star polymers consisting of three poly(phenylacetylene) chains with precisely controlled chain lengths were synthesised through living polymerisation of phenylacetylene derivatives using a Rh-based multi-component catalyst system. The structure-function relationship of these star polymers was also explored. The resulting star polymers were thoroughly characterised using various spectroscopic techniques and their star-shaped structures were clearly visualised using atomic force microscopy (AFM).

Free Research Field

機能性高分子

Academic Significance and Societal Importance of the Research Achievements

本研究は最近我々が開発した新規重合触媒システムを駆使し、環状・表面ブラシ・ボトルブラシ・ヤヌス高分子を合成した。本研究成果の学術的意義は、材料科学およびナノテクノロジーに応用できる動的なヘリカル高分子からなるトポロジー的にユニークなスターポリマーの開発に貢献した。特にこの研究で新しく合成可能となるスターポリマーは機能材料の設計および合成に役立ち、社会に有用な特殊な潤滑剤やキラルマテリアルの応用に貢献すると期待される。