Controlled chain branching free radical polymerization manipulate with trithiocarbonates

Authors

  • Xiao Long Wang,

    1. College of Polymer Science and Engineering, State Key Lab for Polymer Materials Engineering, Sichuan University, Chengdu 610065, People's Republic of China
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  • Zhi Chen,

    1. College of Polymer Science and Engineering, State Key Lab for Polymer Materials Engineering, Sichuan University, Chengdu 610065, People's Republic of China
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  • Rong Ran

    Corresponding author
    1. College of Polymer Science and Engineering, State Key Lab for Polymer Materials Engineering, Sichuan University, Chengdu 610065, People's Republic of China
    • College of Polymer Science and Engineering, State Key Lab for Polymer Materials Engineering, Sichuan University, Chengdu 610065, People's Republic of China
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Abstract

Soluble, branched (methyl) methacrylate copolymers have been prepared via facile, one-step, batch solution free radical polymerizations taken to high conversion. Methyl methacrylate (MMA) or methacrylate has been copolymerized with the branching comonomer (BCM) using a trithiocarbonate (TTC) to inhibit gelation. The BCMs employed were tripropylene glycol diacrylate (TPGDA) and trihydroxymethylpropyl triacrylate (TMPTA). Soluble branched copolymers containing unreacted double bonds have been produced and characterized by 1H-NMR spectroscopy. These two brancher monomers have been shown to produce regularly branched material with the small molar mass distributions in the presence of TTC. The results of DSC and Mark–Houwink constant α analyses support the production of the branched architectures. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009

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