| 含氮类亲核试剂对异丁烯阳离子聚合的作用(III)——六氢吡啶的作用及其含氮类亲核试剂作用机理 |
| |
| 引用本文： | 郭文莉,武冠英,李树新,孙晓民.含氮类亲核试剂对异丁烯阳离子聚合的作用(III)——六氢吡啶的作用及其含氮类亲核试剂作用机理[J].石油化工高等学校学报,2002,15(1):7-10. |
| |
| 作者姓名： | 郭文莉 武冠英 李树新 孙晓民 |
| |
| 作者单位： | 1. 北京石油化工学院材料与化工系,北京,102600
2. 北京化工大学高分子材料研究所,北京,100029 |
| |
| 基金项目： | 国家自然科学基金资助项目 (2 970 4 0 0 2 ) |
| |
| 摘 要： | 在以四氯化钛为共引发剂的异丁烯阳离子聚合反应中 ,通过六氢吡啶的加料顺序和浓度对二枯基氯/四氯化钛 /异丁烯和四氯化钛 /异丁烯等聚合反应规律和紫外光谱的研究 ,进一步证实了亲核试剂在阳离子聚合中的 3个作用 ;并且证明了六氢吡啶在体系中具有很强的捕获质子和稳定碳正离子的作用。在分子模拟技术研究亲核试剂与正离子络合的的基础上 ,通过三乙胺、苯胺衍生物、吡啶和六氢吡啶等亲核试剂对异丁烯阳离子聚合反应作用的研究 ,提出了含氮类亲核试剂对阳离子聚合反应的作用机理
|
| 关 键 词： | 阳离子聚合 可控聚合 异丁烯 亲核试剂 |
| 文章编号： | 1006-396X(2002)01-0007-04 |
| 修稿时间： | 2001年3月8日 |
Effect of N-Containing Nucleophiles on IB Carbocationic Polymerization(III)——Effect of Hexpyridine and the Mechanism of Nucleophiles |
| |
| GUO Wen-li ,WU Guan-ying ,LI Shu-xin ,SUN Xiao-min.Effect of N-Containing Nucleophiles on IB Carbocationic Polymerization(III)——Effect of Hexpyridine and the Mechanism of Nucleophiles[J].Journal of Petrochemical Universities,2002,15(1):7-10. |
| |
| Authors: | GUO Wen-li WU Guan-ying LI Shu-xin SUN Xiao-min |
| |
| Affiliation: | GUO Wen-li 1,WU Guan-ying 2,LI Shu-xin 1,SUN Xiao-min 1 |
| |
| Abstract: | Three effects of nucleophiles on carbocationic polymerization are further confirmed, through addition sequences of hexpyridine and effects of concentration of hexpyridine on Dicumyl/TiCl 4/IB and TiCl 4/IB carbocationic polymerization and UV spectra in IB carbocationic polymerization with TiCl 4 coinitiator. It was showed that hexpyridine is stronger in trapping proton and stabilizing effects on carbocation. The mechanism of effects of nucleophiles on carbocationic polymerization are proposed based on the results of molecular simulation of complex between nucleophiles and carbocationic, and the effects of nucleophiles , such as (Et) 3N, phenylamine derivatives, pyridine and hexpyridine on IB carbocationic polymerization. |
| |
| Keywords: | Carbocationic polymerization Controlled polymerization Isobutylene Nucleophile |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
