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Graft Copolymerization of Styrene and Acrylonitrile in the Presence of Poly(propylene glycol): Particle Growth

机译：聚丙二醇存在下苯乙烯与丙烯腈的接枝共聚：颗粒生长

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摘要

The particle growth in the graft free-radical copolymerization of styrene (St) and acrylonitrile (AN) in the presence of poly(propylene glycol) is investigated by experiments and modeling. The concentrations of chain transfer agent and macromer, and the St/AN ratio play important roles in particle size and its distribution. A particle size model is developed and an analytic expression for the particle size in terms of monomer mass concentration (W_(mto)), initiator molar concentration ([I]_o), and macromer mass concentration (W_(Mo)) is derived. The particle size is described experimentally as: W_(mto)~(0.58) [I]_0~(-0.06).Particle growth processes under various experimental conditions are well described by the model.
机译：通过实验和模型研究了在聚丙二醇存在下苯乙烯（St）和丙烯腈（AN）的接枝自由基共聚中的颗粒生长。链转移剂和大分子单体的浓度以及St / AN比在粒径及其分布中起着重要作用。建立了粒径模型，并从单体质量浓度（W_（mto）），引发剂摩尔浓度（[I] _o）和大分子单体质量浓度（W_（Mo））得出了粒径的解析表达式。实验中将粒径描述为：W_（mto）〜（0.58）[I] _0〜（-0.06）。该模型很好地描述了各种实验条件下的颗粒生长过程。

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  • 来源
    《Macromolecular reaction engineering》 |2012年第10期|p.395-405|共11页
  • 作者

    Li Li; Linbo Wu; Zhiyang Bu; Cheng Gong; Bo-Geng Li; Klaus-Dieter Hungenberg;

  • 作者单位

    Department of Chemical & Biological Engineering, State Key Laboratory of Chemical Engineering, Zhejiang University, 310027 Hangzhou, China;

    Department of Chemical & Biological Engineering, State Key Laboratory of Chemical Engineering, Zhejiang University, 310027 Hangzhou, China;

    Department of Chemical & Biological Engineering, State Key Laboratory of Chemical Engineering, Zhejiang University, 310027 Hangzhou, China;

    Department of Chemical & Biological Engineering, State Key Laboratory of Chemical Engineering, Zhejiang University, 310027 Hangzhou, China;

    Department of Chemical & Biological Engineering, State Key Laboratory of Chemical Engineering, Zhejiang University, 310027 Hangzhou, China;

    Polymer Technology, BASF SE, 67056 Ludwigshafen, Germany;

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