RAFT ‐mediated emulsion polymerization of chloroprene and impact of chain‐end structure on chloroprene rubbers
作者: Yuhei IshigakiHideharu Mori
作者单位: 1Department of Polymer Science and Engineering, Department of Organic Device Engineering, Graduate School of Science and Engineering Yamagata University 4‐3‐16, Jonan, Yonezawa 992‐8510 Japan
2 Denka Company Limited 2209 Oaza Omi Itoigawa Niigata 949‐0303 Japan
3 Department of Organic Materials Science, Graduate School of Organic Materials Science Yamagata University 4‐3‐16, Jonan, Yonezawa 992‐8510 Japan
刊名: Journal of Applied Polymer Science, 2018, Vol.135 (12), pp.n/a-n/a
来源数据库: Wiley Journal
DOI: 10.1002/app.46008
关键词: emulsion polymerizationradical polymerizationrubber
原始语种摘要: ABSTRACT(#br)The reversible addition‐fragmentation chain transfer (RAFT) polymerization of chloroprene (CP) in an emulsion system using a dithiocarbamate‐type RAFT agent was studied. The controlled RAFT‐mediated emulsion polymerization was achieved by the appropriate combination of a RAFT agent and nonionic surfactant (polyoxyethylene phenyl ether) using a water‐soluble initiator (VA‐044) at 35 °C. An almost linear first‐order kinetic plot was observed until relatively high conversion (>80%) with molecular weights between 22,300 and 33,100 and relatively narrow molecular weight distributions ( Mw/Mn ≦ 1.5) were achieved. The amount of the emulsifier used and the pH of the system were found to affect the controlled character, polymerization rate, and induction period,...
全文获取路径: Wiley  (合作)
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关键词翻译
关键词翻译
  • chloroprene 氯丁二烯
  • rubbers 绵羊选
  • polymerization 聚合酌
  • emulsion 乳浊液
  • emulsifier 乳化剂
  • structure 构造
  • vulcanized 硫化的
  • weight 
  • chain 
  • impact 冲击碰撞