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甲基丙烯酸甲酯-丙烯酸乙酯乳液共聚动力学研究
引用本文:管洁,包永忠,黄志明,翁志学.甲基丙烯酸甲酯-丙烯酸乙酯乳液共聚动力学研究[J].应用化工,2006,35(3):192-194,197.
作者姓名:管洁  包永忠  黄志明  翁志学
作者单位:浙江大学,聚合反应工程国家重点实验室,浙江,杭州,310027
摘    要:为了合成适于药物包衣用的甲基丙烯酸甲酯-丙烯酸乙酯(MMA-EA)共聚物胶乳,对以非离子型乳化剂OP-10为乳化剂、过硫酸钾为引发剂的MMA-EA乳液共聚动力学进行了研究。发现初期共聚速率随着乳化剂浓度、引发剂浓度和聚合温度的增加而增大,这是由于共聚物乳胶粒子平均粒径随着乳化剂、引发剂浓度和聚合温度的增加而减小,乳胶粒子数目增加所致。通过调节乳化剂、引发剂以及反应温度可以达到合适的聚合反应速率,最终合成出转化率大于95%的MMA-EA共聚乳液。

关 键 词:甲基丙烯酸甲酯  丙烯酸乙酯  乳液聚合  动力学
文章编号:1671-3206(2006)03-0192-03
收稿时间:2005-12-21
修稿时间:2005-12-21

Study of kinetic of emulsion copolymerization of methyl methacrylate/ethyl acrylate
GUAN Jie,BAO Yong-zhong,HUANG Zhi-ming,WENG Zhi-xue.Study of kinetic of emulsion copolymerization of methyl methacrylate/ethyl acrylate[J].Applied chemical industry,2006,35(3):192-194,197.
Authors:GUAN Jie  BAO Yong-zhong  HUANG Zhi-ming  WENG Zhi-xue
Affiliation:State Key Laboratory of Polymer Reaction Engineering, Zhejiang University, Hangzhou 310027, China
Abstract:In order to synthesize methyl methacrylate-ethyl acrylate(MMA-EA) copolymer latexes suitable for the application of drug coating,the kinetics of MMA-EA emulsion copolymerization,using OP-10 as the emulsifier and KPS as the initiator,were investigated.It was found that the initial copolymerization rate increased as the concentration of the emulsifier,initiator and polymerization temperature increasing.It was caused by the increase of latex particles number as evidenced by the decrease of size of latex particles as the concentration of the emulsifier,initiator and polymerization temperature increasing.MMA-EA copolymer emulsion with high polymerization conversion(>95%) was prepared by adjusting the polymerization conditions.
Keywords:methyl methacrylate  ethyl acrylate  emulsion polymerization  kinetics
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