Creation and Self-Organization of Supramolecular Polymers with Topologies

2021 Fiscal Year Final Research Report

• Project/Area Number: 19H02760
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 35010:Polymer chemistry-related
• Research Institution: Chiba University
• Principal Investigator: YAGAI SHIKI 千葉大学, 大学院工学研究院, 教授 (80344969)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: 超分子ポリマー / 有機機能材料 / 自己集合 / 自己組織化 / トポロジー / ナノ構造 / 高分子 / 高次構造

Outline of Final Research Achievements

Supramolecular polymers, which are obtained by non-covalent polymerization of monomer molecules, are expected to become the next generation of polymer materials because they are easier to polymerize, decompose, and recycle than conventional polymer materials. Conventional polymers show various properties through elegant molecular design of monomers through the control over higher-order structure (topology) of the polymer main. On the other hand, topology control has not been studied for supramolecular polymers. In this study, we succeeded in synthesizing supramolecular polymers with various topologies by making full use of our originally developed curved supramolecular polymers, and demonstrated that they have various physical properties derived from their topology.

Free Research Field

超分子化学

Academic Significance and Societal Importance of the Research Achievements

当該研究グループは、π電子系分子の水素結合からなる風車状6量体が湾曲構造の自発的形成を伴って超分子重合し、π電子系部位の構造によっ てユニー クなリングやラセン、ポリカテナン等を与え、さらにそれらが従来のポリマー材料にはない性質を示すことを実証した。本成果は、当該現象の本質的理解を可能にし、今後湾曲構造ならではの機能創出を目指す上で重要な多くの知見を与える。当該成果は、超分子重合に新風・変革を起こす可能性があり、日本発の独創的なトポロジカル自己集合材料開発へ向けての大きな一歩となる。