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2023 Fiscal Year Final Research Report

Tailor-made synthesis of well-defined poly(substituted methylene)s via C1 polymerization of diazoacetates

Research Project

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Project/Area Number 21H01988
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 35010:Polymer chemistry-related
Research InstitutionEhime University

Principal Investigator

Ihara Eiji  愛媛大学, 理工学研究科(工学系), 教授 (90243592)

Project Period (FY) 2021-04-01 – 2024-03-31
Keywordsジアゾ酢酸エステル / C1重合 / リビング重合 / 立体特異性重合 / パラジウム錯体 / 機能性高分子
Outline of Final Research Achievements

C1 polymerization is a method for polymer synthesis, which can afford carbon-carbon main chain polymers with an unprecedented chemical structure from one carbon unit and has attracted much attention. Our group found that diazoacetate can be an effective monomer for the C1 polymerization for the first time and developed some effective initiating systems based on Pd complexes that can yield new polymers.
In this research project, new Pd-based initiating systems with further improved activity with respect to molecular weight and tacticity of the resulting polymers were developed and with these new initiating systems C1 polymers bearing a functional group at their chain end and a controlled higher order structure were prepared.

Free Research Field

高分子合成化学

Academic Significance and Societal Importance of the Research Achievements

主鎖のすべての炭素にエステルが結合した構造を有するポリマーの合成を可能とするジアゾ酢酸エステルのC1重合は、ビニル重合では合成できない炭素ー炭素結合を主鎖とするポリマーの合成法として注目されている。この重合法によって、分子量や立体構造が高度に制御されたポリマーの合成が可能となれば、高分子合成化学の基礎研究として極めて大きな意義を持つ成果となる。その手法を用いて、これまでにない物性や機能性を有する新たな合成高分子材料として有用なポリマーの合成が実現し、現代社会の発展に寄与することも期待できる。

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Published: 2025-01-30  

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