论文部分内容阅读
用含1,3,5-三嗪的二元碘代芳烃和1,4-二乙炔苯衍生物,通过Sonogashira钯催化偶联反应,合成了主链含1,3,5-三嗪结构的聚对苯撑乙炔共轭聚合物P1-P3,并用红外光谱、核磁共振氢谱和碳谱对聚合物的结构进行了表征。考察了反应时间、反应温度、单体的摩尔投料比和催化剂用量对聚合物相对分子质量及其分布的影响。紫外及荧光光谱表明,聚合物紫外最大吸收出现在320～380 nm,P2和P3的溶液荧光最大发光波长在442 nm处,且荧光较强,是一类蓝色聚合物发光材料。
Triazine-containing 1,3,5-triazine-containing 1,3,5-triazine was synthesized by palladium-catalyzed coupling reaction using diiodoaromatic hydrocarbons containing 1,3,5-triazine and 1,4-diethynyl benzene derivatives Poly (p-phenylene acetylene) conjugated polymers P1-P3 were synthesized and characterized by IR, 1HNMR and GC. The effects of reaction time, reaction temperature, molar charge ratio of monomer and amount of catalyst on the molecular weight and distribution of the polymer were investigated. UV and fluorescence spectra showed that the maximum UV absorption of the polymer appeared at 320 ~ 380 nm, the maximum fluorescence emission wavelength of the solution of P2 and P3 was at 442 nm, and the fluorescence was strong. It is a kind of blue polymer luminescent material.