Experimental investigation of single polymer chain mechanics via analysis of mechanical analysis of gels

2020 Fiscal Year Final Research Report

• Project/Area Number: 17H04891
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Polymer/Textile materials
• Research Institution: Hokkaido University
• Principal Investigator: NAKAJIMA TASUKU 北海道大学, 先端生命科学研究院, 准教授 (80574350)
• Project Period (FY): 2017-04-01 – 2021-03-31
• Keywords: 高分子科学 / ゲル / 単一高分子鎖 / 力学特性 / 破断特性 / 膨潤

Outline of Final Research Achievements

Mechanical properties of polymeric materials are mainly determined by mechanical properties of polymer chains inside. Thus, experimental determination of mechanical properties of single polymer chain is important for widespread applications of polymeric materials. However, experimental techniques to measure the properties of single polymer chain have been still in development. In this study, we succeeded in extracting the mechanical properties of single polymer chain, especially its extremely stretched state, by analyzing the stretching and swelling tests of the macroscale polymer gels.

Free Research Field

高分子科学

Academic Significance and Societal Importance of the Research Achievements

高分子材料は、ゴム・プラスチック・ハイドロゲルなどとして社会で幅広く使われており、高分子材料なくして現代科学技術は成り立たない。本研究では、高分子材料の構成単位である高分子１本鎖の（特に極限伸長状態における）力学的性質を、ゲルの力学的性質の解析から抽出することに成功した。こうして得られた情報は、高分子材料の力学的性質（強さ、伸びなど）を理解するために極めて重要となると期待される。