武汉工程大学学报2025，Vol.47Issue(5)：497-501,538,6.DOI:10.19843/j.cnki.CN42-1779/TQ.202306002
对苯二甲酸/新戊二醇/羟乙基化双酚A的酯化动力学研究
Esterification kinetics of terephthalic acid/neopentyl glycol/polyhydroxyethyl bisphenol A
摘要
Abstract
A polyester resin was synthesized via polycondensation in the melt state at reaction temperatures ranging from 160 to 240℃,using terephthalic acid(PTA),neopentyl glycol(NPG),and hydroxyethylated bisphenol A(BPA-EO)as monomers.Based on the mass concentration method,both first-order and second-order kinetic models were established.The mass concentration was determined by measuring the amount of water evolved during the reaction,which was then used for curve fitting.The results showed that the linear correlation coefficients for both the first-order and second-order kinetic fitting curves exceeded 0.99,indicating excellent fitting quality.Statistical analysis and model identification revealed that the first-order kinetic model provided a superior fit to the experimental data,suggesting that the reaction between PTA and NPG/BPA-EO followed first-order kinetics.The activation energy(Ea)and pre-exponential factor(k0)for this reaction were determined to be 15.67 kJ/mol and 0.211 7 min-¹,respectively.关键词
对苯二甲酸/羟乙基化双酚A/一级反应/酯化动力学Key words
terephthalic acid/hydroxyethylated bisphenol A/first-order reaction/esterification kinetics分类
化学化工引用本文复制引用
余文杰,石成龙,曾梓睿,安耀辉,柳程伟,樊庆春..对苯二甲酸/新戊二醇/羟乙基化双酚A的酯化动力学研究[J].武汉工程大学学报,2025,47(5):497-501,538,6.基金项目
绿色化工过程教育部重点实验室(武汉工程大学)开放/创业基金(GCX2022004) （武汉工程大学）
