ビフェニル‐４，４′‐ビスアゾチオアリールエーテルを開始剤，コモノマーとしたビニルモノマーの重合

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タイトル別名
  • Polymerization of Vinyl Monomers Using Ripbeny1-4, 4′-bisazothioaryl Ethers as Both Initiators and Comonomers
  • ビフェニルー4 4 ビスアゾチオアリールエーテル オ カイシザイ コ モノマー

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説明

Biphenyl-4, 4′-bisazothioaryl ethers in solution decomposed at about 70°C to give mixtures of diaryl disulfides and oligo (4, 4′-biphenylene) s, via the formation of biphenylylene radicals and thiyl radicals. These bisazothio ethers worked simultaneously as initiators and comonomers towards various viny monomers to give copolymers containing biphenyl units in the chains. The copolymers as well as oligo (4, 4′-biphenylene) s contained approximately two terminal arylmercapto groups per chain. Kinetics of the polymerization indicate that terminal arylmercapto groups in these polymers might be formed not by recombination of the primary thiyl radicals, but by a chain-transfer reaction of active ends of growing chains to diaryl disulfides. o-Substituents on the thiophenyl groups restricted the chain-transfer reaction.

収録刊行物

  • 高分子論文集

    高分子論文集 37 (8), 563-566, 1980

    公益社団法人 高分子学会

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