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RAFT Inverse Miniemulsion Polymerization of Acrylic Acid and Sodium Acrylate

机译：丙烯酸和丙烯酸钠的RAFT反相细乳液聚合

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摘要

The synthesis of well-controlled poly(sodium acrylate) by RAFT inverse miniemulsion polymerization is presented. The effects of RAFT agent concentration, pH of the dispersed phase, types of initiator, and initiator concentration on the polymerization were studied. The partial loss of control at pH above 7 was likely due to the hydrolysis of the RAFT agent. Particle nucleation was investigated by GPC. It was found that the molecular weight distribution was unim-odal when using the lipophilic initiator AIBN. Chain extension was carried out, and the morphology of the final latex (after chain extension) was analyzed by SEM. The reason for the wide particle size distribution observed is discussed.
机译：提出了利用RAFT逆向细乳液聚合法合成可控的聚丙烯酸钠。研究了RAFT试剂浓度，分散相pH，引发剂类型和引发剂浓度对聚合反应的影响。 pH值高于7时，控制的部分损失可能是由于RAFT试剂的水解所致。通过GPC研究了颗粒成核。发现当使用亲脂性引发剂AIBN时，分子量分布是不寻常的。进行扩链，并通过SEM分析最终乳胶（扩链后）的形态。讨论了观察到宽粒度分布的原因。

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  • 来源
    《Macromolecular reaction engineering》 |2011年第4期|p.163-169|共7页
  • 作者

    Liu Ouyang; Lianshi Wang; F. Joseph Schork;

  • 作者单位

    College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China;

    College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China;

    School of Chemical and Biomolecular Engineering, Georgia institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30332-0100, USA;

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