采用绝热量热法 ,在Dewar聚合釜中研究动力学机理复杂的氯化二烯丙基二甲基铵 (DADMAC)在水溶液中的自由基聚合动力学 ,用数值计算法拟合其动力学和热力学参数 ,计算结果与实验值吻合良好 .与文献值相比 ,两系统的热力学参数基本相同 ,但动力学参数有些出入 .认为这是由于文献中将引发剂 (NH4) 2 S2 O8的热分解简单处理成一级反应而未考虑其副反应的影响造成的 . Adiabatic calorimetry was used to study the kinetics of free radical polymerization of diallyldimethylammonium chloride (DADMAC) in aqueous solution in a Dewar polymerizer. The kinetics and The thermodynamic parameters are in good agreement with the experimental ones.Compared with the literatures, the thermodynamic parameters of the two systems are basically the same, but the kinetic parameters are somewhat different.It is considered that the thermal decomposition of the initiator (NH4) 2 S2 O8 Simple processing into a reaction without considering the impact of its side effects caused.