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丙烯酸正丁酯聚合的Diels-Alder反应机理理论研究
引用本文:张翠丽,王学业,刘丽明,王艳玲,彭新宇. 丙烯酸正丁酯聚合的Diels-Alder反应机理理论研究[J]. 计算机与应用化学, 2008, 25(6)
作者姓名:张翠丽  王学业  刘丽明  王艳玲  彭新宇
作者单位:湘潭大学化学学院,环境友好化学与应用省部共建教育部重点实验室,湖南,湘潭,411105
基金项目:国家自然科学基金,湖南省教育厅资助项目
摘    要:本文从理论上对丙烯酸正丁酯(nBA)自引发聚合的Diels-Alder反应机理进行了研究.利用DFT方法在UB3LYP/6-31G*水平上对反应的最低能量路径进行了计算,各驻点能量分别采用MP2/6-311G**和B3LYP/6-311 G(3df;2p)进一步精确计算.结构表明:此Diels-Alder反应仅包括一种途径,即路径(I),另一条途径在热力学不支持.

关 键 词:密度泛函理论(DFT)  Diels-Alder反应  丙烯酸正丁酯  内禀反应坐标(IRC)

Modeling the Diels-Alder reaction of the spontaneous initiation of the polymerization of n-butyl acrylate
Zhang Cuili,Wang Xueye,Liu Liming,Wang Yanling,Peng Xinyu. Modeling the Diels-Alder reaction of the spontaneous initiation of the polymerization of n-butyl acrylate[J]. Computers and Applied Chemistry, 2008, 25(6)
Authors:Zhang Cuili  Wang Xueye  Liu Liming  Wang Yanling  Peng Xinyu
Abstract:The mechanism for Diels-Alder reactions of the spontaneous initiation polymerization of n-butyl acrylate(nBA)was investigated theoretically.The minimum energy path(MEP)of the reaction was calculated by using the density functional theory(DFT)at the UB3LYP/6-31G~* level,and the energies of stationary points were further refined at the MP2/6-311G** level and B3LYP/6-311 G(3df,2p)level.It is found that the Diels-Alder reaction only involves one channel,which is the channel(I),and the other channel is not favorable in thermodynamics.
Keywords:density functional theory (DFT)  Diels-Alder reaction  n-butyl acrylate  intrinsic reaction coordination (IRE)
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