Precise synthesis of architectural polymers with luminescent units at polymer connection points and evaluation of the correlation between structure and physical properties

2020 Fiscal Year Final Research Report

• Project/Area Number: 19K15619
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 35010:Polymer chemistry-related
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Goseki Raita 東京工業大学, 物質理工学院, 助教 (20592215)
• Project Period (FY): 2019-04-01 – 2021-03-31
• Keywords: アニオン重合 / 発光性分子 / ブロック共重合体 / 特殊構造高分子 / 星型ポリマー / 精密合成 / ミクロ相分離 / 1,1-ジフェニルエチレン誘導体

Outline of Final Research Achievements

A 1,1-diphenylethylene (DPE) analog based on a carbazole skeleton showing luminesence property in solution and a DPE derivative having tetraphenylethene skeleton exhibiting aggregation-induced luminescence were designed and synthesized, respectively. By clarifying the electrophilicity of these compounds and the nucleophilicity of the resulting anionic species, it was found that a series of architectural polymers (block copolymers, star polymers, and end-functionalized polymers) can be precisely synthesized. In addition, it was also found that the polymer synthesized from each compound showed luminescence property in a solution state or a solid (film) state, as expected.

Free Research Field

高分子合成

Academic Significance and Societal Importance of the Research Achievements

同種または異種高分子の結合点のみに発光性分子を導入する方法を確立できたことは、その他の魅力的な機能性団を導入できることにも繋がり、学術的な更なる広がりが大いに期待できる。また、一分子のみの導入にも関わらず発光特性を強く示したことから、材料特性に直結する異種界面構造を発光特性により可視化できることが期待され、工業的な材料開発設計指針に繋がる可能性を示す研究結果となった。