含氮类亲核试剂对异丁烯阳离子聚合的作用(II)——苯胺衍生物对异丁烯阳离子聚合体系的作用

Effect of N-Containing Nucleophiles on IB Carbocationic Polymerization(II) --Effect of Aniline Derivative on IB Carbocationic Polymerization

通过对二苯胺、N -甲基苯胺和N ,N -二甲基苯胺等苯胺衍生物对DiCumyl/TiCl4 /IB/CH2 Cl2 体系阳离子聚合反应规律的研究 ,得到了与三乙胺氮类亲核试剂具有相同的三个作用。结合计算机分子模拟技术得到的亲核试剂与氢质子结合的活化能和苯胺衍生物在异丁烯阳离子聚合反应得到的聚合物的相对分子质量、相对分子质量分布GPC谱图分析 ,得到了二苯胺、N -甲基苯胺和N ,N

Three kinds of effects like triphenylamine nucleophiles in carbocationic polymerization were further confirmed by studying carbocationic polymerization of diphenylamine,N-methyl aniline, N,N-dimethyl aniline and their derivatives in Dicumyl/TiCl 4/IB and TiCl 4/IB and UV spectra. The mechanism of carbocationic polymerization of diphenylamine, N-methyl aniline, N,N-dimethyl aniline was obtained by combining the activation energy of neucleophiles in trapping proton, obtained by computer simulation, and result of analyzing the molecular weight distribute GPC,polymer molecular weight, obtained from polymerization of aniline derivativesin Dicumy1/TiCl 4/IB.