Development and application of supramolecular systems based on the assembly of synthetic helical polymers

2023 Fiscal Year Final Research Report

• Project/Area Number: 21H01984
• 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: Nagoya University
• Principal Investigator: Ikai Tomoyuki 名古屋大学, 工学研究科, 准教授 (90402495)
• Co-Investigator(Kenkyū-buntansha): 田浦 大輔 名城大学, 理工学部, 准教授 (20622450)
• Project Period (FY): 2021-04-01 – 2024-03-31
• Keywords: らせん / 超分子ポリマー / キラリティ / 高次構造 / イソシアニド

Outline of Final Research Achievements

In this project, we developed supramolecular assemblies of synthetic polymers with secondary structures, and investigated the exploration of new properties and outstanding functions by combining the structural features of secondary structures and supramolecules. Consequently, we were the first to succeed in the emergence of a high enantioseparation ability of the contracted one-handed helical tubular ladder polymers, defect-free synthesis of a fully π-conjugated optically-active helical ladder polymer, discovery of the coordination-driven homochiral self-sorting of triptycene-based metallomacrocycles, and synthesis of the multiple expanded helicene showing a very strong circularly polarized luminescence.

Free Research Field

高分子化学

Academic Significance and Societal Importance of the Research Achievements

二次構造を有する高分子に関する研究は世界中で展開されているが、二次構造と超分子の強みを掛け合わせて機能発現を目指す研究は黎明期にある。本研究を通じて、これまで実現が困難であった合目的的な高次構造の構築に基づいたキラル認識能の発現、それを利用したキラル固定相への応用、極めて優れた円偏光発光性を示すホモヘリシティを有する一連の分子郡の開発は、学術的新規性・独創性はもとより、応用面においても重要な研究成果と位置づけられる。