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采用膨胀计法研究了过硫酸钾-亚硫酸氢钠为氧化还原引发剂引发的二甲基二烯丙基氯化铵和衣康酸的水溶液共聚合动力学,测定了共聚合速率方程和表观活化能,用红外光谱和凝胶渗透色谱对共聚物进行了表征。共聚合热力学计算表明,在温度T=303~333K的试验条件范围,共聚合的活化能变化⊿G<0。研究结果表明,二甲基二烯丙基氯化铵和衣康酸共聚合速率方程为Rp∝[M]1.49[I]0.53,共聚合表观活化能Ea=54.11kJ/mol。
The kinetics of copolymerization of dimethyl diallyl ammonium chloride and itaconic acid induced by potassium persulfate - sodium bisulfite as redox initiator was studied by means of dilatometer. The copolymerization rate equation The activation energies of the copolymers were characterized by IR and gel permeation chromatography. Copolymerization Thermodynamics calculations show that in the temperature range of T = 303 ~ 333K, the activation energy of copolymerization changes ⊿G <0. The results showed that the copolymerization rate of dimethyldiallylammonium chloride and itaconic acid was Rpα [M] 1.49 [I] 0.53, and the apparent activation energy Ea was 54.11kJ / mol.