可溶性聚(2-甲氧基-5-辛氧基)对苯乙炔的制备及性能

Preparation and Properties of a Soluble Poly(2-Methoxy-5-Octyloxy)-p-Phenylene Vinylene

通过双醚化反应、氯甲基化反应和强碱诱导的脱氯化氢反应,制备出可溶性聚(2-甲氧基-5-辛氧基)对苯乙炔(PMOCOPV)。利用傅里叶变换红外光谱(FT-IR)、核磁共振谱(1H-NMR)、紫外-可见吸收光谱(UV-Vis)和凝胶渗透色谱(GPC)对PMOCOPV的结构进行表征。研究表明,PMOCOPV在三氯甲烷中具有良好的溶解性,利于成膜。热性能研究表明其热稳定性良好,起始分解温度约为200℃。荧光光谱研究表明,PMOCOPV具有优良的光致发光性能,其最大发射波长为641 nm,荧光寿命为7.5×10-10s。

A soluble poly （2-methoxy-5-octyloxy）-p-phenylene vinylene （PMOCOPV） was synthesized through double etherification, chloromethylation and dehydrochlorination reactions. The structure of the PMOCOPV has been characterized by FT-IR, ^1H-NMR, UV-Vis and GPC. The results indicate that PMOCOPV shows good solubility in chloroform and easily forms film. The PMOCOPV has good thermal stability, the initial decomposition temperature of PMOCOPV is about 200℃. The photoluminescence spectrum shows that PMOCOPV is a good photoluminescence polymer. The maximum emission wavelength of polymer is 641 nm and fluorescence lifetime is 7.5×10^-10s.