Preparation of helical structure in diblock copolymer using chiral dopant and evaluation of its hierarchical structure

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K05590
• 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: Osaka Institute of Technology
• Principal Investigator: Hirai Tomoyasu 大阪工業大学, 工学部, 准教授 (60585917)
• Project Period (FY): 2019-04-01 – 2022-03-31
• Keywords: 有機ー無機ハイブリッド材料 / キラル / シリカ / らせん

Outline of Final Research Achievements

Novel stereoregular polymers with polyhedral oligomeric silsesquioxane were prepared using precise synthesis method. The polymer formed preferred-handed helical conformation when they were mixed with small amount of chiral dopants. The helical structure was kept during calcination process, leading to a chiral silica. This is the first report that chiral silica was prepared from POSS. We believe that this finding can be applied in various kinds of fields including medicine.

Free Research Field

高分子構造解析、高分子合成、高分子物性

Academic Significance and Societal Importance of the Research Achievements

本研究課題は、これまでに煩雑なプロセスを必要とされてきたキラルシリカの簡便な調製法、さらに本手法で調製したキラルシリカは従来材料を遥かに凌駕する微細らせん空孔を有することを明確に示したものであり、学術的には極めてインパクトが大きい。また、本研究より得られるキラルシリカは、医薬品開発の要となる光学分離の機関材料として機能することが十分に期待され、研究より得られる社会的な意義は極めて大きい。