钯催化噻吩类交替共聚物的制备及性能研究  

Preparation and character of alternating conjugated thiophene-based copolymer catalyzed by Pd

作　　者：马国富[1] 王福霞[1] 康瑞雪[1] 黄皓浩[1] 

机构地区：[1]西北师范大学,化学化工学院,生态环境相关高分子材料教育部重点实验室,甘肃省高分子材料重点实验室,甘肃兰州730070

出　　处：《西北师范大学学报（自然科学版）》2012年第3期78-83,共6页Journal of Northwest Normal University(Natural Science)

基　　金：国家自然科学基金资助项目(21164009)

摘　　要：采用Pd催化的Stille偶联方法合成了3种不同分子量的噻吩类共轭交替共聚物,并对共聚物的热性能、光学性能和电化学性能进行了测试.所得3种共聚物的紫外-可见吸收光谱分别在465,455和460nm处出现最大吸收,荧光光谱发射峰分别在572,530和533nm处.电化学测试表明,共聚物均具有较窄的电化学带隙能,分别为1.60,1.46和1.45eV.Three conjugated alternating thiophene-based copolymers with different molecular weight are synthesized by palladium-catalyzed Stille cross coupling reaction. The thermal stability, electrochemical and optical properties of copolymers are examined. The maximum absorption peaks of UV-vis absorption spectra of the copolymers are found at 465,455 and 460 nm, respectively. The fluorescence emission spectra exhibites maximum emission at 572,530 and 533 nm. The electrochemical experiment results demonstrate that these copolymers have low electrochemical bandgap of 1.60,1.46 and 1.45 eV.

关 键 词：钯催化 导电聚合物 交替共聚物 聚噻吩 

分 类 号：O631.11[理学—高分子化学]