含三嗪或查尔酮结构聚对亚苯基亚乙炔基的合成及其荧光特性  

SYNTHESIS AND PHOTOPHYSICAL PROPERTIES OF POLY(ARYLENE ETHYNYLENE)S CONTAINING 1,3,5-TRIAZINE OR CHALCONE UNITES

作　　者：罗春华[1] 赵凌[1] 王跃川[1] 程格[1] 

机构地区：[1]四川大学高分子科学与工程学院高分子材料工程国家重点实验室,成都610065

出　　处：《高分子学报》2006年第6期824-828,共5页Acta Polymerica Sinica

基　　金：国家自然科学基金(基金号50273021)资助项目

摘　　要：Poly（arylene ethynylene）s,P1 and P2 containing 1,3,5-triazine and chalcone unites respectively,were synthesized by Sonogashira coupling reaction.These polymers exhibited good solubility in common organic solvents,such as dichloromethane,chloroform,and tetrahydrofuran.The molecular weight Mw of P1 was 6390 with polydispersity（PDI） being 2.33 and that of P2 was 6870 with polydispersity（PDI） being 1.85 characterized by GPC.The photophysical properties were analyzed by solution and solid state photoluminescence spectroscopy.P1 emitted blue fluorescence at around 441 nm in CH2Cl2 or THF solutions under UV excitation.The photoluminescence behavior of P2 was dependent on the solvent,with green emitting light at around 550 in CH2Cl2 solution and 500 nm in THF solution.Powder photoluminescence spectra of P1 and P2 showed that the peak wavelengths respectively shifted to 530 and 605 nm.Poly（arylene ethynylene）s, P1 and P2 containing 1,3,5-triazine and chalcone unites respectively, were synthesized by Sonogashira coupling reaction. These polymers exhibited good solubility in common organic solvents, such as dichloromethane, chloroform, and tetrahydrofuran. The molecular weight Mw of P1 was 6390 with polydispersity （PDI） being 2.33 and that of P2 was 6870 with polydispersity （PDI） being 1.85 characterized by GPC. The photophysical properties were analyzed by solution and solid state photoluminescence spectroscopy. P1 emitted blue fluorescence at around 441 nm in CH2Cl2 or THF solutions under UV excitation. The photoluminescence behavior of P2 was dependent on the solvent, with green emitting light at around 550 in CH2Cl2 solution and 500 nm in THF solution. Powder photoluminescence spectra of P1 and P2 showed that the peak wavelengths respectively shifted to 530 and 605 nm.

关 键 词：三嗪 查尔酮 聚对亚苯基乙炔 SONOGASHIRA偶联反应 光致发光 

分 类 号：O633.5[理学—高分子化学]