采用酰基己内酰胺封端的聚酰亚胺(PI活化剂)与NaOH作为聚合反应引化体系,确定体系的反应温度为145~160℃之间,采用绝热法测定聚合反应的温升曲线,针对阴离子聚合尼龙6建立绝热反应动力学模型,从而计算得到反应动力学参数。当选择相对分子质量4000~6000左右的PI活化剂,其添量为0.05~0.10(占单体质量)时,确定反应级数为准一级、活化能在71.9~74.2kJ·mol-1之间、指前因子在2.1×1011~3.6×1011 mol 1-n·s-1范围内;并对反应过程进行模拟,模拟结果和试验聚合温升曲线有很好一致性,从而验证了模型具有一定的合理。 Using acyl caprolactam-terminated polyimide (PI activator) and NaOH as the polymerization initiating system, the reaction temperature of the system was determined to be between 145 and 160 ° C. The temperature rise curve of the polymerization reaction was determined by adiabatic method. For the anionic polymerization Nylon 6 to establish adiabatic reaction kinetic model, and thus calculate the reaction kinetic parameters. When the PI activator with relative molecular mass of 4000 ~ 6000 was selected, the reaction order was determined to be quasi-first level with the addition amount of 0.05 ~ 0.10 (accounting for monomer mass), and the activation energy was in the range of 71.9-74.2 kJ · mol -1 And the pre-exponential factor was in the range of 2.1 × 1011 ~ 3.6 × 1011 mol 1-n · s-1. The reaction process was simulated. The simulation results were in good agreement with the experimental temperature rise curves. Certainly reasonable.