SYNTHESIS OF POLYMERS CONTAINING N-N LINKAGES
SYNTHESIS OF POLYMERS CONTAINING N-N LINKAGES作者机构:Department of Chemistry McGill University 801 Sherbrooke Street West Montreal Ouebec Canada H3A 2K6Department of Chemistry McGill University 801 Sherbrooke Street West Montreal Ouebec Canada H3A 2K6
出 版 物:《Chinese Journal of Polymer Science》 (高分子科学(英文版))
年 卷 期:2003年第21卷第5期
页 面:541-550页
核心收录:
学科分类:08[工学] 0805[工学-材料科学与工程(可授工学、理学学位)] 080502[工学-材料学]
主 题:Hydrazine N-N-linkage N-aminoimide Poly(imidoaryll ether) N-aminotriazole Polyazine
摘 要:The N--N linkage in hydrazine is thermally stable when it is tetrasubstituted and there are electron-withdrawinggroups attached to the nitrogen atoms. Our research on the synthesis of polymers contaning N--N linkages is reviewed. TheN,N-bisimide structure has been introduced in the backbone of polymers as well as a pendant group in poly(aryl ether)s togive very thermoxidatively stable polymers with very high glass transition temperatures. Most of the polymers form tough,flexible films. N-Aminotriazoles also form stable imides by reaction with anhydrides and these N-imidotriazole groups havebeen introduced as pendent groups on poly(aryl ether)s. The polymers are highly fluorescent materials. Three methods for thesynthesis of polymers containing the tetrasubstituted-azine structure will be discussed: (1) oxidative coupling of bisimines;(2) condensation of bishydrazones with diketones; (3) poly(aryl ether azines) from the azine formed from 4-fluorobenzo-phenone by reaction with salts of bisphenols.