Elucidation of the hierarchical structural changes of a gel with a focus on the spontaneous helical winding of a perfluoroalkyl chain

2017 Fiscal Year Final Research Report

• Project/Area Number: 26620068
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Functional solid state chemistry
• Research Institution: Ehime University
• Principal Investigator: Sato Hisako 愛媛大学, 理工学研究科(理学系), 教授 (20500359)
• Co-Investigator(Kenkyū-buntansha): 矢島 知子 お茶の水女子大学, 基幹研究院, 准教授 (10302994)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: 振動円二色性分光法 / 低分子量ゲル化剤 / 超分子キラリティ / パーフルオロ基 / らせん / フィブリール

Outline of Final Research Achievements

The VCD spectroscopy was applied to reveal the kinetic and thermodynamic aspects of gelation by a chiral low molecular gelator with perfluoroalkyl groups. An attention was paid to the helical nature of a perfluoroalkyl chain on the formation of gel fibrils. It was noted that VCD signals were remarkably enhanced during the gelation process. The three-dimensional gelation was compared with the formation of a two-dimensional Langmuir-Blodgett (LB) film. Some thicker rods with helical grooves were observed in the LB films, which were regarded as a precursor of gel fibrils.

Free Research Field

機能物性化学