引用本文:
冉瑞成, 黄进, 沈吉. 高分子载体Lewis酸催化剂:苯乙烯、丙烯腈共聚物-四氯化钛复合物[J]. 应用化学,
2016, 4(5): 49-54.
Citation: Ran Ruicheng, Huang Jin, Shen Ji. A POLYMER-SUPPORTED LEWIS ACID CATALYST: POLY(STYRENE-CO-ACRYLONITRILE)-TITANIUM TETRACHLORDDE COMPLEX[J]. Chinese Journal of Applied Chemistry, 2016, 4(5): 49-54.
Citation: Ran Ruicheng, Huang Jin, Shen Ji. A POLYMER-SUPPORTED LEWIS ACID CATALYST: POLY(STYRENE-CO-ACRYLONITRILE)-TITANIUM TETRACHLORDDE COMPLEX[J]. Chinese Journal of Applied Chemistry, 2016, 4(5): 49-54.
高分子载体Lewis酸催化剂:苯乙烯、丙烯腈共聚物-四氯化钛复合物
摘要:
高分子催化剂是功能性高分子的重要组成部分,是目前催化剂研究的方向之一,近年来发展很快[1-5]。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比较稳定的复合物,它对酯化、缩醛、缩酮等有机反应具有良好的催化效能[6],也可作为α-甲基苯乙烯正离子聚合的有效催化剂,在室温下即可获得高分子量的聚合物[7]。
English
A POLYMER-SUPPORTED LEWIS ACID CATALYST: POLY(STYRENE-CO-ACRYLONITRILE)-TITANIUM TETRACHLORDDE COMPLEX
Abstract:
The beads of styrene, acrylonitrile(41%) and divinylbenzene (3.6%) copolymer were synthesized and combined with titanium tetrachloride in chloroform to form an n-d bonding complex containing 14.74% of chlorine which correspond to 1.03×10-3mol TiCl4/g complex beads. The complex can be used to catalyze many organic reactions in bigh yield, such as esterification, ketal formation, acetalization, etherification and the Friedel-Crafts alkylation. The complex is very stable, it can be reused at least six times and more active than polystyrene-titanium tetrachloride complex[6].
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