含苯并三氮唑单元的聚对苯撑乙炔类聚合物的合成及性能  

Synthesis and Characterization of Benzotriazole-Containing Poly(aryleneethynylene) Derivatives

作　　者：古丽巴哈尔·达吾提[1] 阿布力克木·吾布力达[1] 布买日艳·吾布力卡斯木[1] 张建平[1] 司马义·努尔拉[1] 

机构地区：[1]新疆大学化学化工学院,石油天然气教育部重点实验室,乌鲁木齐830046

出　　处：《功能高分子学报》2012年第1期68-73,共6页Journal of Functional Polymers

基　　金：国家自然科学基金资助项目(20674066)

摘　　要：利用Pd(Ⅱ)配合物为催化剂,使用4,7-二溴-2-十二烷基-1,2,3-苯并三氮唑和1,4-二乙炔基-2,5-二(烷氧基)苯通过Sonogashira反应合成了3个带有不同长度烷氧基侧链,主链中含有1,2,3-苯并三氮唑单元的聚苯乙炔类聚合物。采用FT-IR、1H-NMR对其化学结构进行了表征。结果表明:这类聚合物的数均分子量在0.93×104～1.13×104,苯并三氮唑单元上长链烷基和苯环上长链烷氧基的存在使此类聚合物在CHCl3、THF等溶液中的溶解度较大,其固态薄膜也较容易制备,聚合物在固态薄膜状态下的紫外-可见最大吸收波长比在CHCl3溶液中红移了约45 nm,在固态薄膜状态下的荧光发射峰比在CHCl3溶液中也发生了较大的红移。Poly（aryleneethynylene） derivatives containing 1,2,3-benzotriazole group and bearing side chains with different lengths were synthesized by Pd（Ⅱ） complex catalyzed Sonogashira reaction with 4,7-dibromo-2-dodecylbenzotriazole and 2,5-diethynyl-1,4-dioxybenzene.The chemical structure of these polymers were characterized by 1H-NMR and FT-IR.Results show that the number average molecular weight of these polymers range from 0.93×104 to 1.13×104.These new polymers can be solved easily in common organic solvents such as CHCl3 and THF.The film of these polymers can be prepeared easily due to the long alkyl chain on benzotriazole and the long alkoxyl chain on benzene ring.The maximum absorbance of these polymers in cast film appeared at 490 nm,which has red-shifted 45 nm from that in CHCl3 solution.The emission peaks of these polymers in cast film has red-shifted from that in CHCl3 solution.

关 键 词：苯并三氮唑 烷氧基链 聚合物 

分 类 号：O63[理学—高分子化学]