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研究了以span—80为乳化剂和过硫酸钾-脲引发体系下，甲基丙烯酸乙酯基三甲基氯化铵（DM．MC）反相乳液聚合的动力学．得出在［K2S2O8］为12．3~73．8μmol·L-1，[CO（NH2）］k0～9·95mmolL-1，乳化剂为41·75~66．809·L－1范围内的聚合速率表达式：聚合反应活化能．数据表明，K2S2O8-脲为氧化还原引发，且在本实验浓度范围内，添加过量的脲对聚合速率基本上无影响．
The kinetics of inverse emulsion polymerization of methyl methacrylate trimethyl ammonium chloride (DM.MC) under the system of initiator span-80 and potassium persulfate-urea was studied. The results showed that when the molar ratio of [K2S2O8] was 12.3-73.8μmol·L-1, [CO (NH2)] k0-9.5mmolL-1 and emulsifier was 4175-66.809 · L-1 Polymerization rate expression: polymerization activation energy. The data shows that K2S2O8-urea is a redox initiator and that in the concentration range of this experiment, the addition of excess urea has virtually no effect on the rate of polymerization.