Photochemically and thermally induced radical promoted cationic polymerization using allyl phosphonium salts
作者: L. AtmacaI. KayihanY. Yagci
作者单位: 1Department of Chemistry, Istanbul Technical University, Maslak, Istanbul 80626, Turkey
刊名: Polymer, 2000, Vol.41 (16), pp.6035-6041
来源数据库: Elsevier Journal
DOI: 10.1016/S0032-3861(99)00878-2
关键词: Cationic polymerizationPhosphonium saltsAddition–fragmentation reactions
原始语种摘要: Abstract(#br)Three allylic triphenyl phosphonium salts, namely allylphosphonium (AP), methyl allylphosphonium (MAP) and ethoxy carbonyl allylphosphonium (ECAP) salts with a hexafluoroantimonate counter anion were synthesized and characterized. Their capability to act as initiators or coinitiators for the cationic polymerization of oxiranes such as cyclohexene oxide (CHO) and vinyl monomers such as butylvinyl ether and N -vinyl carbazole was examined. These monomers turned out to be polymerizable in the presence of ECAP provided free radicals are generated thermally at 70°C or photochemically at λ>350 nm with the aid of appropriate radical sources. The polymerization of CHO was also induced thermally in the absence of radical sources only with ECAP at a very low rate,...
全文获取路径: Elsevier  (合作)
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影响因子:3.379 (2012)

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关键词翻译
关键词翻译
  • phosphonium 膦根
  • salts 盐类
  • polymerization 聚合酌
  • cationic 阳离子的
  • allyl 烯丙基
  • radical 
  • carbonyl 羰基
  • nucleophilic 亲核的
  • triphenyl 三苯基
  • oxidized 被氧化的