研究了苯乙烯 /丙烯酸丁酯 /N,N-二甲基 ,N—丁基 ,N—甲基丙烯酰氧乙基溴化铵无皂阳离子聚合物乳液共聚合动力学 ,讨论了引发剂浓度、共单体浓度、离子强度及温度对聚合速率的影响 ,得到了相应的聚合速率方程 :Rp=kp[D]0 .6 4 [A]0 .6 7和聚合反应表观活化能 Ea=2 5.78KJ.mol- 1 ;而离子强度对该聚合反应的影响存在双重性即聚合速率随离子强度增大呈减小—增大—又减小的变化过程 ,说明该聚合过程中可能有两种成核机理同时存在 The copolymerization kinetics of styrene / butyl acrylate / N, N-dimethyl, N-butyl and N-methacryloyloxyethyl ammonium bromide soapless cationic polymers was studied. The effects of initiator concentration , Total monomer concentration, ionic strength and temperature on the polymerization rate, the corresponding polymerization rate equation was obtained: Rp = kp [D] 0.664 [A] 0.67 and the apparent activation energy of polymerization Ea = 2 5.78KJ · mol- 1; and the ionic strength of the polymerization has the dual effect that the polymerization rate decreases with increasing ionic strength - increasing - and then decreasing the process of change, indicating that the polymerization process may have two The nucleation mechanism exists at the same time