Development of bismuth-containing pai-conjugated polymers toward turn-on type fluoride sensors

2021 Fiscal Year Final Research Report

• Project/Area Number: 20K15331
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 35010:Polymer chemistry-related
• Research Institution: Yamagata University
• Principal Investigator: Matsumura Yoshimasa 山形大学, 大学院理工学研究科, 助教 (30791818)
• Project Period (FY): 2020-04-01 – 2022-03-31
• Keywords: ビスマス / 化学センサー / フッ化物イオン検出 / Turn-on型センサー

Outline of Final Research Achievements

We investigated the synthesis of novel functional polymers having bismuth-dithiocarboxylate structure and their application to turn-on type fluoride ion sensor. For example, a polymer was prepared from a monomer having fluorene unit by the reaction with carbon disulfide and dichlorophenylbismuthine. The resulting polymer did not exhibit fluorescence properties, however it was changed into a fluorescent compound by the addition of tetrabutylammonium fluoride as a fluoride ion source. The quantum yield of the fluorescent compound was 0.20. This result indicates that the resulting polymers are applicable to turn-on type fluoride ion sensor material.

Free Research Field

高分子化学

Academic Significance and Societal Importance of the Research Achievements

ビスマス-炭素結合が不安定であるためか、有機材料としての応用が限定されていたビスマスを用いた機能性材料を創出することができた。本分子設計手法により、安定に有機ビスマスを活用できることが明らかになった。また、フッ化物イオンの検出は、水の安全性確保にもつながる技術であるため、社会的意義が大きい。