The Atom Transfer Radical Polymerization of Methyl Methacrylate in Ionic Liquid Media of 1-Methylimidazolium Alkyltes

    Volume 39, Issue 5 (September 2011)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Published Online: 9 June 2011

    Page Count: 7


    Ma, Fumin
    Hubei Key Laboratory of Environmental Pollution Control and Resources Reuse and School of Chemical and Materials Engineering, Huangshi Institute of Technology, Huangshi,

    Li, Wen
    Hubei Key Laboratory of Environmental Pollution Control and Resources Reuse and School of Chemical and Materials Engineering, Huangshi Institute of Technology, Huangshi,

    Lai, Guoqiao
    Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou,

    Guo, Jianlin
    Hubei Key Laboratory of Environmental Pollution Control and Resources Reuse and School of Chemical and Materials Engineering, Huangshi Institute of Technology, Huangshi,

    Ruan, Min
    Hubei Key Laboratory of Environmental Pollution Control and Resources Reuse and School of Chemical and Materials Engineering, Huangshi Institute of Technology, Huangshi,

    Qin, Wanguang
    Hubei Key Laboratory of Environmental Pollution Control and Resources Reuse and School of Chemical and Materials Engineering, Huangshi Institute of Technology, Huangshi,

    (Received 6 February 2011; accepted 15 April 2011)

    Abstract

    Three brønsted acidic ionic liquids, 1-methylimidazolium acetate ([Hmim][CH3COO]), 1-methylimidazolium propionate ([Hmim][CH3CH2COO]) and 1-methylimidazolium butyrate ([Hmim][CH3CH2CH2COO]) were used as reaction medium for atom transfer radical polymerization of methyl methacrylate with ethyl 2-bromoisobutyrate (EBiB)/CuBr as the initiating system. Kinetic studies, chain extension and block copolymerization confirmed the well-controlled manner of these polymerizations in three brønsted acidic ionic liquids. The reactions were fast and the polydispersities of the polymers were quite narrow (1.10<Mw/Mn<1.34). The rate of polymerization in [Hmim][RCOO] decreased with the increasing alkyl chain lengths (n from 1 to 3), indicating a strong dependence of reaction rate on the length of the substituted groups of the anions in ionic liquids.


    Paper ID: JTE103768

    DOI: 10.1520/JTE103768

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    Author
    Title The Atom Transfer Radical Polymerization of Methyl Methacrylate in Ionic Liquid Media of 1-Methylimidazolium Alkyltes
    Symposium , 0000-00-00
    Committee D01