| 含氮类亲核试剂对TiCl4/TMPCl/St阳离子聚合作用的研究 |
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| 引用本文： | 唐卫华,郭文莉,武冠英. 含氮类亲核试剂对TiCl4/TMPCl/St阳离子聚合作用的研究[J]. 高分子材料科学与工程, 2002, 18(6): 58-61 |
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| 作者姓名： | 唐卫华 郭文莉 武冠英 |
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| 作者单位： | 1. 北京化工大学材料科学与工程学院,北京,100029
2. 北京石油化工学院,北京,102600 |
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| 摘 要： | 通过聚合物的GPC谱图分析，证明了亲核试剂吡啶，N－甲基苯胺，防老剂和E801作为电子对给体在TiCl4/TMPC1/St阳离子聚合体系中，既能捕获质子，又能稳定活性增长中心，提出了含氮类亲核试剂在苯乙烯阳离子聚合反应中的作用机理。
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| 关 键 词： | 含氮类 亲核试剂 TiCl4／TMPC1／St 阳离子聚合 作用 研究 活性中心 电子对给体 吡啶 N－甲基苯胺 防老剂 E801 |
| 文章编号： | 1000-7555(2002)06-0058-04 |
| 修稿时间： | 2001-01-11 |
RESEARCH OF NITROGEN CONTAINING NUCLEOPHILES ROLE ON MECHANISM OF POLYSTYRENE CARBOCATIONIC POLYMERIZATION |
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| TANG Wei-hua ,GUO Wen-li ,WU Guan-ying. RESEARCH OF NITROGEN CONTAINING NUCLEOPHILES ROLE ON MECHANISM OF POLYSTYRENE CARBOCATIONIC POLYMERIZATION[J]. Polymer Materials Science & Engineering, 2002, 18(6): 58-61 |
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| Authors: | TANG Wei-hua GUO Wen-li WU Guan-ying |
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| Affiliation: | TANG Wei-hua 1,GUO Wen-li 2,WU Guan-ying 1 |
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| Abstract: | The role of nitrogen containing nucleophiles such as Py, N-MPA, A-D, E801 as electron donors in TMPCl/TiCl 4/St cationic polymerization system was demonstrated by GPC traces. The effecting mechanism of nitrogen containing nucleophiles in styrene cationic polymerization was proposed: when the concentration of such electron donors was lower than a certain value, they acted as H + proton trappers; while, on the contrary they mainly stabilized living propagation center of the polymerization system. By comparison, E801 was the most effective electron donors among nitrogen containing nucleophiles, which was consistent with the result of computer simulation, and its effect on TMPCl/TiCl 4/St polymerization system was further investigated. |
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| Keywords: | living center electron donors pyridine N-methylphenylamine A-D E801 |
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