中文摘要：

通过Heck偶联法制备了一种新型p-/n-掺杂型电致发光材料——3-十二烷氧基噻吩-共-1，3,4-噁二唑共轭低聚物（P3DDOTV—OXD），用核磁共振氢谱（^1H NMR）及凝胶色谱（GPC）对其结构进行了分析表征．用紫外-可见光谱法（UV-Vis）、荧光光谱法及电化学分析法对其光学和电化学性能进行了研究．结果表明：P3DDOTV-OXD的重均分子量为：5287（四氢呋喃为流动相，聚苯乙烯为标准样品）．在氯仿溶液中，P3DDOTV-OXD的紫外最大吸收波长为314nm，在401nm处发射出明亮的蓝光；其最大发射波长较规整均聚物（HTP3DDOT）（λmax=516nm）蓝移了115nm．循环伏安测定结果表明：P3DDOTV—OXD在正、负向区域分别出现了氧化还原峰，电子亲和能（Ia）为2．88eV，有利于电子从阴极的注入,3-十二烷氧基噻吩-共-噁二唑共轭低聚物有望成为集空穴、电子双向传输为一体的新型光电功能材料．

英文摘要：

A novel p-/n-alternating conjugation oligomer 3-dodecyloxythiophene-co-1,3,4-oxadiazole （P3DDOTV-OXD） was obtained with the method of Heck coupling. The structure was effectively characterized using ^1H NMR and GPC. Optical and electrochemistry properties were studied by UV-Vis, luminescence spectroscopy, and cyclic voltammetry. The average molecular weight of the copolymer was 5287 （solvent is THF with polystyrene as the standard）. The UV-Vis maximal absorption was at 314 nm and emission maximum was at 401 nm in CHC13 solution with bright blue color. The emission maximum was blue-shifted by 115 nm in comparison to the regioregular homopolymer （HT P3DDOT, 516 nm） in solution. In the cyclic voltammetry measurements, the 3-dodecyloxythiophene-co-1,3,4-oxadiazole copolymer showed n- and p-doping processes. The electron affinity value was at 2.88 eV, which would facilitate the electron injection from cathode. The facts imply that this alternating 3-dodecyloxythiophene-co-1,3,4- oxadiazole copolymer might be promising polymer for high performance organic light emitting diodes （OLED） materials with hole-electron recombination.