三乙胺催化双酚A环氧树脂与丙烯酸反应动力学  

Kinetic Analysis of Reaction of Bisphenol A Epoxy Resin and Acrylic Acid Catalyzed by Triethylamine

作　　者：李韦龙 周瑞翔 董永路 桂雪峰 胡继文[1,2,4,5,6] 林树东 LI Weiong;ZHOU Ruixiang;DONG Yongu;GUI Xuefeng;HU Jiwen;LIN Shudong(Guangzhou Institute of Chemistry,Chinese Academy of Sciences,Guangzhou 510650,China;University of Chinese Academy of Sciences,Beijing 100049,China;Management Committee of Shaoguan NanXiong Hi-Teac Industry Development Zone,Nanxiong 512400,China;CAS Engineering Laboratory for Special Fine Chemicals,Guangzhou 510650,China;CASH GCC Shaoguan Research Institute of Advanced Materials,Shaoguan 512400,China;CASH GCC Fine Chemicals Incubator(Nanxiong)Co.,Ltd,Nanxiong 512400,China)

机构地区：[1]中国科学院广州化学研究所,广东广州510650 [2]中国科学院大学,北京101408 [3]韶关南雄高新技术产业开发区管理委员会,广东韶关512400 [4]中国科学院新型特种精细化学品工程实验室,广东广州510650 [5]国科广化韶关新材料研究院,广东韶关512400 [6]国科广化精细化工孵化器(南雄)有限公司,广东南雄512400

出　　处：《广州化学》2024年第4期28-31,I0002,共5页Guangzhou Chemistry

基　　金：韶关科技计划工程(210906134536798)。

摘　　要：采用原位红外技术,研究了三乙胺(TEA)催化双酚A环氧树脂(E-51)与丙烯酸(AA)合成双酚A环氧丙烯酸酯的反应特性及反应温度对反应速率的影响,通过建立动力学模型,对反应体系酸值和酯基浓度的跟踪对反应动力学进行了研究。通过回归分析计算出的速率常数符合Arrhenius公式,进一步证实该反应是一级动力学反应;在90℃、100℃、110℃时反应速率分别为0.01448、0.02341和0.04229 min^(-1);反应表观活化能为57.98±0.71 kJ/mol,频率因子2.48×106 min^(-1)。该反应对温度较敏感,易受温度变化的影响,因此在合成过程中需控制反应温度,可有效防止体系由于反应放热导致反应失控。To study the reaction characteristics of bisphenol A epoxy acrylate synthesised by acrylic acid(AA)and bisphenol A epoxy resin(E-51)catalysed by triethylamine(TEA).In this study,the effect of reaction temperature on the reaction rate was investigated using in-situ infrared technology.The reaction rates at 90℃,100℃and 110℃were 0.01448,0.02341 and 0.04229 min^(-1),respectively.The reaction kinetics was studied by establishing a kinetic model for the determination of the acid value and the determination of the ester group concentration in the system.At the same time,the rate constant calculated by regression analysis is in accordance with the Arrhenius formula,further confirming that the reaction is a first order kinetic reaction.The apparent activation energy of the reaction system is 57.98±0.71 kJ/mol and the frequency factor is 2.48×106 min^(-1).It is temperature sensitive and easily affected by temperature changes.Studies have shown that the reaction temperature should be controlled during the synthesis process,which can effectively prevent the system from losing control due to reaction heat release.

关 键 词：三乙胺 双酚A环氧树脂 丙烯酸 环氧丙烯酸酯 反应动力学 

分 类 号：TQ032.4[化学工程]