中文摘要：

设计合成了外围带咔唑基团的联苯桥联齐聚对苯撑乙烯撑衍生物，用核磁共振氢谱、质谱和元素分析对其结构和纯度进行了表征．热分析测试结果表明：该化合物具有良好的化学结构稳定性和相态稳定性．玻璃化转变温度为142．05℃，热失重开始温度为306℃．退火处理前后的旋涂薄膜的吸收光谱的性状和X射线衍射数据说明该化合物的固体薄膜为无定形薄膜，而且高温下退火4h没有明显变化．研究结果表明，以联苯桥联结构为中心，外围修饰大体积的咔唑基团的分子设计不仅在减弱分子聚集和抑制π-π相互作用方面取得了良好效果，而且保持了联苯桥联DSB衍生物的结构稳定性．

英文摘要：

An oligo（phenylene vinylene） with central biphenyl bridge and peripheral carbazole founctionalities was synthesized. The structure and purity were characterized by using ^1H NMR, MS and elementary analysis techniques. Thermal analysis data indicated that the obtained compound possessed both high chemical and morphological stability. The glass transition temperature was 142.05 ℃ ; the mass-loss temperature started at 306 ℃. The observed absorption features and X-ray diffraction patterns suggested an amorphous state of the spin-coating films, and the annealing treatment at 80 ℃ for 4 h did not change the amorphous property. The results above showed that the molecular design of introducing a central biphenyl bridge and bonding peripheral bulky carbazole functionalities can not only effectively decrease the aggregation of chromophores but also keep the stability of biphenyl bridged DSB derivatives.