节点文献
丙烯酸正丁酯聚合的Diels-Alder反应机理理论研究(英文)
Modeling the Diels-Alder reaction of the spontaneous initiation of the polymerization of n-butyl acrylate
【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.
【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.
【Key words】 density functional theory(DFT); Diels-Alder reaction; n-butyl acrylate; intrinsic reaction coordination(IRC);
- 【文献出处】 计算机与应用化学 ,Computers and Applied Chemistry , 编辑部邮箱 ,2008年06期
- 【分类号】O631.5
- 【下载频次】175