Abstract: Acrylic ester emulsion was polymerized in the Discover Organic Synthesizing System with methyl methacrylate(MMA) and butyl acrylate(BA)as polymerizing monomer, potassium peroxydisulfate (KPS) as evocating agent, and sodium dodecyl sulfate (SDS) as emulsifier. In the process the mass of KPS, SDS, MMA and BA, as well as reaction temperature were separately inspected in detail so that the influence of microwave power on emulsion polymerization and a kinetic study of microwave polymerization had been conducted. The property and structure of polymerization emulsion was determined and characterized with thermogravimetrie analyzer(TGA)，differential scanning calorimeter(DSC) and FT-IR. The results of the experiments show that microwave power is 60 W, the mass of KPS, SDS, MMA and BA is 0.06 g, 0.27 g , 0.3 g and 0.3 g respectively; reaction temperature is 343 K; the activation energy of reaction is Ea=96.957 1 kJ/mol; the kinetics equation, Rp=k\[n(KPS)\]1.107 9\[n(SDS)\]0.616 4\[n(MMA)\]1.205 9\[n(BA)\]-0.228 is established for single mode focusing microwave irradiation emulsion polymerization.

Key words: Single mode focusing microwave irritation , Butyl acrylate, Methyl methacrylate , Emulsion polymerization , Kinetics

摘要： 利用Discover微波精确有机合成系统,以甲基丙烯酸甲酯(MMA)、丙烯酸丁酯(BA)为聚合单体、过
硫酸钾(KPS)为引发剂、十二烷基硫酸钠(SDS)为乳化剂进行乳液聚合。考察了微波辐射功率对乳液聚合反应的影
响,分别考察了引发剂的质量,乳化剂质量,甲基丙烯酸甲酯质量,丙烯酸丁酯质量及反应温度,还对微波聚合反应
动力学方程进行了研究。利用热重分析仪,差示扫描量热仪和傅立叶变换红外光谱仪对聚合物乳液的性能进行了
测试与结构表征。实验结果表明,反应体系选择60 W 为微波辐射条件,m (KPS)为0.06g、m (SDS)为0.27g、m
(MMA)和m (BA)均为3g,反应温度为343K,测得聚合反应的活化能Ea=96.9571kJ/mol,建立了单模聚焦微波
辐射乳液聚合的动力学方程:Rp=k[n(KPS)]1.1079[n(SDS)]0.6164[n(MMA)]1.2059[n(BA)]-0.228。

关键词: 单模聚焦微波辐射 , 丙烯酸丁酯 , 甲基丙烯酸甲酯 , 乳液聚合