γ-Ray-initiated dispersion polymerization of PMA in microreactor
γ-Ray-initiated dispersion polymerization of PMA in microreactor
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DOI：
10.1016/j.cej.2003.11.017
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发表时间：
2004-08
影响因子：
15.1
通讯作者：
Zhenqi Chang;Gang Liu;Fang Fang-Fang;Yangchao Tian;Zhicheng Zhang
中科院分区：
文献类型：
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作者：
Zhenqi Chang;Gang Liu;Fang Fang-Fang;Yangchao Tian;Zhicheng Zhang
以聚乙烯吡咯烷酮为稳定剂，在乙醇-水介质中，采用γ射线引发分散聚合法，在室温下合成了微米级的聚丙烯酸甲酯（PMMA）粒子。微反应技术可以显著改善聚合物的粒径分布。详细研究了温度、辐射时间、辐射剂量率、介质和稳定剂浓度等聚合参数对聚合产物粒径及粒径分布的影响。
Micron size uniform poly(methyl acrylate) particles are synthesized by γ-ray-initiated dispersion polymerization in microreactor with ethanol–water media using poly(vinyl pyrrolidone) as stabilizer at room temperature. The microreaction technologies can strongly improve polymer particle size distribution. The effects of polymerization parameters, such as temperature, radiation time, radiation dose rate, media and the concentration of the stabilizer, on particle size and size distribution, are studied in detail.