| TiCl4—C60Cln催化体系引发异丁烯正离子聚合 |
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| 引用本文： | 李绍军,杨洲.TiCl4—C60Cln催化体系引发异丁烯正离子聚合[J].合成橡胶工业,1999,22(5):288-290. |
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| 作者姓名： | 李绍军 杨洲 |
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| 作者单位： | 青岛化工学院高分子材料系 |
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| 摘 要： | 研究了碳笼烯非质子酸经体系引发异丁烯正离子聚合的反应规律，并与ＴｉＣｌ４正离子催体系进行了比较。ＧＰＣ的测试结果表明，ＴｉＣｌ４－Ｃ６０Ｃｌｎ催化体系中可能存在２种活性中心：（１）体系中的微量水与ＴｉＣｌ４配位形成的质子引发体系；（２）（ＴｉＣｌ５）－（Ｃ６０Ｃｌｎ－１）＾＋离子引对引发活性中心。
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| 关 键 词： | 异丁烯 离子聚合 引发 催化 四氯化钛 氯化碳球 |
Cationic polymerization of isobutylene initiated by fullerenes/TiCl4 catalyst |
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| Li Shaojun,Yang Zhou and Chen Dianbao.Cationic polymerization of isobutylene initiated by fullerenes/TiCl4 catalyst[J].China Synthetic Rubber Industry,1999,22(5):288-290. |
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| Authors: | Li Shaojun Yang Zhou and Chen Dianbao |
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| Abstract: | The polymeric behavior of isobutylene initiated by TiCl4-C60Cln(the novel fullerenes catalyst system)were investigated.The effects of C60 and its derivatives were also studied by comparing this system with TiCl4 traditional cationic catalyst system.GPC curve for TiCl4-C60Clnsystem revealed that there were two kinds of active centers which was attributed to the interaction between the trace water and TiCl4 in the TiCl4-C60Cln system, leading to form active center which could compete with (TiCl5)-(C60Cln-1)+ in the polymerization. In other hand, C60Cln could stabilize the polymerization and chain transfer reaction in this system could be reduced as well. |
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| Keywords: | fullerenes fullerenes/TiCl4 catalyst system isobutylene cationic polymerization |
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