【摘要】 提出了有双官能团酸相对分子质量调节剂存在时己内酰胺水解聚合过程动力学模型 ,并进行了实验验证 .对不同温度下聚合产物组成和各影响因素对数均聚合度的影响进行了模拟 .结果表明 ,数均聚合度随进料中水、氨基己酸及相对分子质量调节剂浓度的增加而减小 ,其中水的浓度影响较显著 ,且在考察浓度范围内相对分子质量调节剂浓度 [R]0 ≤ 0 0 0 68mol·kg- 1 时数均聚合度基本不变 ,而 [R]0 >0 0 0 68mol·kg- 1 时数均聚合度则显著减小 .无氨基己酸及相对分子质量调节剂时数均聚合度亦随水浓度增加而减小 .更多还原

【Abstract】 A simulation model dealing with the kinetic behavior of the hydrolytic polymerization of caprolactam with bifunctional regulator is proposed to analyze such characteristic data of the polymerization as the concentrations of caprolactam,cyclic dimer,as well as conversion, number average and weight average polymerization degrees ,and polydispersity indexs The calculated values based on the model agree well with the experimental data The results show that the number average polymerization degree (NAPD) decreases with increasing concentrations of water,aminocaproic acid and relative molecular mass regulator(RMMR) and that the effect of the concentration of water is more obvious, while NAPD does not basically change when the concentration of RMMR is smaller than 0 0068 mol·kg -1 and NAPD decreases when it is greater than 0 068 mol·kg -1 . NAPD also decreases with the increase of concentration of water when the concentrations of aminocaproic acid and RMMR are equal to zero更多还原