Synthesis of pi-conjugated two-dimensional poylmers using unique dynamic covalent bondings

2021 Fiscal Year Final Research Report

• Project/Area Number: 19K23641
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Multi-year Fund
• Review Section: 0501:Physical chemistry, functional solid state chemistry, organic chemistry, polymers, organic materials, biomolecular chemistry, and related fields
• Research Institution: National Institute for Materials Science
• Principal Investigator: MATSUMOTO Michio 国立研究開発法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, 独立研究者 (90843110)
• Project Period (FY): 2019-08-30 – 2022-03-31
• Keywords: 二次元高分子 / 二次元材料 / 高分子合成

Outline of Final Research Achievements

Since the seminal discovery of graphene in 2004, two-dimensional materials have gained broad interests especially with its unique physical properties. Despite many discoveries on their physical properties, methodological establishment on synthesis of artificial two-dimensional materials is still under development. In this study, we have examined new reactions in two different reaction environments, in-solution and on-surface, and used those newly found reactions for polymerization affording π-conjugated two-dimensional polymers. We successfully found a new synthetic method affording two-dimensional polymers including silicon atoms, which have not been found in natural two-dimensional materials.

Free Research Field

高次元高分子合成化学

Academic Significance and Societal Importance of the Research Achievements

二次元ポリマーの反応条件を精査し、液相中での合成と、金属表面上での反応の二つの異なる環境下での反応を検証した。特に、新規の反応条件を見出すことにより、これまで導入が実現されてこなかったシリコンなどのヘテロ原子を含む共役2次元ポリマーを合成できることを見出すに至った。これらの努力を続け天然に存在しない 合成π共役2次元ポリマーを生み出すことにより、グラフェンなどの天然物を超える物性を示すπ共役2次元ポリマーが見出されることが期待される。