高校化学工程学报2023，Vol.37Issue(6)：925-935,11.DOI:10.3969/j.issn.1003-9015.2023.06.007
对二氯苯和N-甲基-4-氨基丁酸钠的反应动力学
Reaction kinetics of p-dichlorobenzene with sodium N-methyl-4-aminobutyrate
尹红 1李鹏 2竹弘 2周银娟 2申尧 3陈志荣 3袁慎峰 3贾艳宇 4蒋杰 4李沃源 4贾锦波 4邓杭军4
作者信息
- 1. 浙江大学 化学工程与生物工程学院, 浙江 杭州 310058||浙江省智能生物材料重点实验室, 浙江 杭州 310058
- 2. 浙江新和成研究院, 浙江 新昌 312599
- 3. 浙江大学 化学工程与生物工程学院, 浙江 杭州 310058
- 4. 浙江新和成特种材料有限公司, 浙江 上虞 312369
- 折叠
摘要
Abstract
In order to investigate the effect of p-dichlorobenzene(DCB)and sodium N-methyl-4-aminobutyrate(SMAB)reaction on the polymerization of polyphenylene sulfide(PPS),reaction kinetics of DCB and SMAB under conditions similar to the preparation of PPS was studied.After the analysis of reaction network and simplifications of reaction processes,kinetic models of the formation of sodium N,N'-(1,4-phenylene)-N,N'-dimethyl-4,4'-diaminobutyrate and sodium N,N'-(1,3-phenylene)-N,N'-dimethyl-4,4'-diaminobutyrate(both denoted as d-SPMAB),sodium N-(3-chlorophenyl)-N-methyl-4-aminobutyrate(m-SCMAB),sodium N-(4-chlorophenyl)-N-methyl-4-aminobutyrate(p-SCMAB),and sodium p-chlorophenolate(p-SCP)were established.Following mass action law and steady state theory,the kinetic equations were derived and fitted with experiment data through linear regression.The fitting results show that the apparent activation energies for the formation of d-SPMAB,m-SCMAB,p-SCMAB,p-SCP are 168.8,154.5,120.3 and 131.6 kJ·mol-1,respectively.A higher ratio of SMAB to DCB can accelerate the reaction but don't change the reaction mechanism.Moreover,water is favorable to the hydrolysis of DCB,while the solvation of water hinders the substitution reaction between DCB and SMAB.关键词
反应动力学/对二氯苯/N-甲基-4-氨基丁酸钠/活化能/聚苯硫醚Key words
reaction kinetics/p-dichlorobenzene/sodium N-methyl-4-aminobutyrate/activation energy/polyphenylene sulfide分类
化学化工引用本文复制引用
尹红,李鹏,竹弘,周银娟,申尧,陈志荣,袁慎峰,贾艳宇,蒋杰,李沃源,贾锦波,邓杭军..对二氯苯和N-甲基-4-氨基丁酸钠的反应动力学[J].高校化学工程学报,2023,37(6):925-935,11.
