Design of Polymeric Materials based on Control of Chain Dynamics at Solid Interfaces

2022 Fiscal Year Final Research Report

• Project/Area Number: 20K05608
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 35010:Polymer chemistry-related
• Research Institution: Shizuoka University (2021-2022); Kyushu University (2020)
• Principal Investigator: Oda Yukari 静岡大学, 工学部, 准教授 (20625595)
• Project Period (FY): 2020-04-01 – 2023-03-31
• Keywords: 高分子構造・物性 / 表面・界面 / 吸着 / 原子間力顕微鏡 / ポリメタクリル酸メチル

Outline of Final Research Achievements

In this project, interfacial chain dynamics was studied based on direct observation of adsorbed polymer chains at a solid surface using atomic force microscopy. The conformational transition of an adsorbed poly(methyl methacrylate) (PMMA) chain proceeded to increase the contact points with the solid surface upon heating. In the model system of the film-formation process, domains composed of multiple PMMA chains with interwining points were formed, and were then developed to construct a single layer with increasing the polymer concentration. Furthermore, direct observation of adsorbed morphology of the epoxy/amine cured product with three-dimensional network structure open the possibility to discuss structure of the cured products at the molecular level.

Free Research Field

高分子化学

Academic Significance and Societal Importance of the Research Achievements

これまで様々な分析手法を駆使して多角的に研究されてきた固体界面における高分子鎖のダイナミクスについて、１本鎖レベルで直接可視化し理解を深めた本研究の成果は、特に高分子物性分野において学術的に意義深い。また、高分子の固体表面への吸着挙動に関する理解は、高分子複合材料の物性制御や効率的な回収・再利用プロセスの実現に向けた異種材料との接着・剥離制御技術の開発において重要な知見となることから、社会的にも意義深い。