以聚醚为主链的含苯骈15-冠-5的聚合物冠醚的合成及其络合与催化性能

用羟甲基苯骈15-冠-5的钠盐与β-碘乙基缩水甘油醚-四氢呋喃共聚物进行反应合成了以聚醚为主链、侧链带苯骈15-冠-5的低聚物,它可以进一步与异氰酸酯反应而交联固化,制成不溶性颗粒状固体或具有较好弹性的胶片。研究了这种低聚物冠醚的络合与催化性能。它对Na~+、K~+均有较好的络合容量,作为相转移催化剂,在Wolff-Kishner反应和正溴辛烷的碘代反应中具有良好的催化活性。还改进了羟甲基苯骈15-冠-5的合成方法并提高了产率。

SYNTHESES AND CHARACTERIZATION OF POLYETHER WITH BENZO (15-CROWN-5) IN THE SIDE CHAIN

A low molecular weight polyether with B15-C-5 in the side chain was synthesized by the reaction of hydroxymethyl benzo(15-crown-5) with a copolymer of β-iodoethyl glycidyl ether and THF. This polymeric crown ether possess good coordination ability with K+, Na+ and is an effective phase-transfer catalyst for some organic reactions. In addition, this polye-ther is a brown viscous oil, having reactive hydroxyl groups, and can be vulcanized with toluene diisocyanate to form a elastic film or immobilized on silica gel.