| 高分子载体Lewis酸催化剂——聚乙烯基吡咯烷酮-四氯化钛复合物 |
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| 引用本文： | 冉瑞成,黄进,沈吉.高分子载体Lewis酸催化剂——聚乙烯基吡咯烷酮-四氯化钛复合物[J].高分子学报,1987,0(6):476-480. |
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| 作者姓名： | 冉瑞成 黄进 沈吉 |
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| 作者单位： | 北京大学化学系 北京
(冉瑞成)，北京大学化学系 北京市公安局
(黄进)，北京化纤工学院应化系 北京(沈吉) |
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| 摘 要： | <正> 功能高分子是近年来高分子科学的一个十分活跃的领域,日益受到人们的重视,高分子催化剂是功能高分子的重要组成部分,具有许多独特的优点和功能,是目前催化剂研究的方向之一,发展迅速。 我们曾将在空气中强烈水解的Lewis酸四氯化钛与聚苯乙烯反应制备了一种高分
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| 关 键 词： | 催化剂 Lewis酸 酸 四氯化钛 高分子载体 苯乙烯/N-乙烯基吡咯烷酮共聚物 高分子复合物 有机合成反应 |
| 收稿时间： | 1986-12-23 |
A POLYMER-SUPPORTED LEWIS ACID CATALYST: COPOLY (STYRENE-N-VINYLPYRROLIDONE)- T1TANIUM TETRACHLORIDE COMPLEX |
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| RAN Rui-cheng,HUANG Jin,Shen Ji.A POLYMER-SUPPORTED LEWIS ACID CATALYST: COPOLY (STYRENE-N-VINYLPYRROLIDONE)- T1TANIUM TETRACHLORIDE COMPLEX[J].Acta Polymerica Sinica,1987,0(6):476-480. |
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| Authors: | RAN Rui-cheng HUANG Jin Shen Ji |
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| Institution: | Department of Chemistry; Peking University; Beijing; Department of Chemistry; Beijing Chemical Fiber College; Beijing |
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| Abstract: | The beads of styrene, N-vinylpyrrolidone (10%) and divinylbenzene (3%) copolymer were synthesized and combined with titanium tetrachloriele in chloroform to form a stable complex containing 14.12% of chlorine which correspond to 9.94 ×10-4 mol TiCl4/l g complex beads. The complex can be used to catalyze a lot of organic reactions in high yield, such as esterifica-tions, acetalizations, ketal formations, etherifications and the Friedel-Crafts alkylation. The complex is more stable and more reactive than polystyrene-titainium tetrachloride complex,and can be reused at least 7 times. |
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| Keywords: | Catalyst and catalysis Lewis acid Titanium tetcachloride Polymer-supported Styrene-N-vinylpyrrolidone copolymer Polymer complex Organic synthesis reactions |
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