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Simplified TERP to achieve living free radical polymerization with crude ethyl 2-phenyltellanyl-2-methylpropionate as mediator
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  • 作者:Haochuan Chen (1)
    Jiao Jiao (1)
    Changwen Zhao (1)
    Yuhong Ma (1) (2)
    Wenchao Ma (1)
    Wantai Yang (1) (2)
  • 关键词:Living free radical polymerization ; Chain transfer agent ; Organotellurium compound ; Styrene ; Butyl acrylate ; Block copolymer
  • 刊名:Polymer Bulletin
  • 出版年:2014
  • 出版时间:July 2014
  • 年:2014
  • 卷:71
  • 期:7
  • 页码:1797-1811
  • 全文大小:
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  • 作者单位:Haochuan Chen (1)
    Jiao Jiao (1)
    Changwen Zhao (1)
    Yuhong Ma (1) (2)
    Wenchao Ma (1)
    Wantai Yang (1) (2)

    1. Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing, 100029, China
    2. Beijing Engineering Research Center of Syntheses and Applications of Waterborne Polymers, Beijing University of Chemical Technology, Beijing, 100029, China
  • ISSN:1436-2449
文摘
Organotellurium compounds-mediated living radical polymerization (TERP) is one of the most robust tools of living free radical polymerizations (LRP). However, synthesis and purification of organotellurium compounds are time-consuming and to be operated in an inert atmosphere due to their extreme sensitivity to trace oxygen. In this article, a simple process of TERP, operating in open air, has been reported. It has demonstrated that the crude organotellurium compound, ethyl 2-phenyltellanyl-2-methylpropionate, could mediate 2,2-azobis (isobutyronitrile) initiated styrene (St) and butyl acrylate (BA) polymerization as an LRP system. For the bulk and solution polymerization of St and the solution polymerization of BA, the molecular weights of produced polymers increased linearly with the monomer conversions. During the same time, the molecular weight distributions kept under 1.3. The UV–vis spectrum showed that the PS polymer chain bearing C-TePh end group. With the sequential monomer addition technique, a clean diblock polymer of PS-b-PBA was also obtained.

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