己内酰胺水解聚合过程模拟──双官能团酸调节剂与尼龙6组成分布

CIESC Journal

己内酰胺水解聚合过程模拟──双官能团酸调节剂与尼龙6组成分布

谢建军,唐志廉,黄南熏

湘潭大学高分子科学与工程研究所!湘潭411105,中国纺织大学环境科学与工程学院!上海200051,中国纺织大学环境科学与工程学院!上海200051

出版日期:2000-02-25 发布日期:2000-02-25

SIMULATION OF HYDROLYTIC POLYMERIZATION OF CAPROLACTAM——EFFECT OF BIFUNCTIONAL REGULATOR ON DISTRIBUTION OF POLYMER COMPOSITIONS

Online:2000-02-25 Published:2000-02-25

摘要/Abstract

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 .

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

中图分类号:

TQ316.4

谢建军,唐志廉,黄南熏. 己内酰胺水解聚合过程模拟──双官能团酸调节剂与尼龙6组成分布 [J]. CIESC Journal.

Xie Jianjun (Institute of Polymer Science and Engineering, Xiangtan University,Xiangtan 411105)Tang Zhilian and Huang Nanxun (Department of Environment Science and Engineering, China Textile University,Shanghai 200051). SIMULATION OF HYDROLYTIC POLYMERIZATION OF CAPROLACTAM——EFFECT OF BIFUNCTIONAL REGULATOR ON DISTRIBUTION OF POLYMER COMPOSITIONS[J]. .