含四嗪单元的聚对苯撑乙炔类聚合物的合成及性能  

Synthesis and Properties of Tetrazine-Containing Poly(Aryleneethynylene)Derivatives

作　　者：拜合提亚.艾海提 阿布都克尤木.阿布都热西提 阿力木.阿卜杜热合曼 吐尼莎古丽.阿吾提 司马义.努尔拉 

机构地区：[1]新疆大学化学化工学院,新疆乌鲁木齐830046

出　　处：《高分子材料科学与工程》2015年第11期50-55,59,共7页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(21164011)

摘　　要：通过Sonogashira偶联反应,以二（三苯基膦）二氯化钯作为催化剂,将3,6-二氯-1,2,4,5-四嗪分别与1,4-二乙炔基-2,5-二辛氧基苯和1,4-二乙炔基-2,5-二（十二烷氧基）苯交替共聚合成了主链中含四嗪单元的新型聚对苯撑乙炔类π-共轭聚合物P1、P2。经傅里叶变换红外光谱、核磁共振氢谱、紫外-可见光谱、荧光光谱、循环伏安、X射线粉末衍射、热重分析等测试手段对共聚物P1、P2进行了表征。结果表明,所得聚合物P1和P2对常用有机溶剂的溶解性不好。与P2相比,P1有一定的结晶性。P1、P2的紫外-可见最大吸收波长均在450nm处出现。P1与P2在CHCl3溶液中的最大发射峰出现在480nm处。与2-十二烷基-1,2,3-苯并三氮唑聚对苯撑乙炔类聚合物相比,P1、P2具有较高的相对荧光量子效率。循环伏安测试显示聚合物P1、P2均在0~2.0V出现明显的p-掺杂峰。3,6-Dichloro-s-tetrazine was copolymerized with 1,4-diethynyl-2,5-his （octyloxy） benzene, and 1,4- diethynyl-2,5-his（dodecyloxy） benzene by Sonogashira coupling reaction using bis（ triphenyl phosphine） palladium（ 11 ） chloride as catalyst to prepare a new type n-conjugated poly（aryleneethynylene） derivatives containing s-tetrazine unit in main chain as P1, P2. The structures of the copolymers were performed by FT-IR, 1H-NMR, Uv-vis, fluorescence spectroscopy （PL）, cyclic votammogram （CV）, XRD and thermogravimetrie analysis . Results show that derived polymers have low solubility in common organic solvents, and P1 has certain crystallinity. The UV-Vis maximum absorption peaks of polymers appear at 450 nm in CHC13. The maximum emission peaks of polymers appear at 480 nm. In comparison with 2-dodecyloxy-1, 2, 3-benzotriazole-containing poly （aryieneethynylene） derivatives, P1 and P2 exhibit higher relative quantum yield in CHC13 solution. Cyclic votammogram results indicate that P1, P2 have Obvious p-doped peaks in the regions from 0V to 2.0 V.

关 键 词：3 6-二氯-1 2 4 5-四嗪 SONOGASHIRA偶联反应 π-共轭聚合物 相对荧光量子效率 

分 类 号：O632.17[理学—高分子化学]