含三苯胺单元的可溶性D-A型共轭聚合物的合成、电致变色性质及器件制备研究

Conjugated polymers containing triphenylamine unites, because of its good solubility and electrochromic properties, attracts more and more researchers attentions, but the solution-processable triphenylamine-based donor-acceptor type polymer prepared by the copolymerization of triphenylamine and its derivatives with acceptor unites, are rarely reported, and the research should be be strengthened. Some triphenylamine derivatives and thiophene derivatives will be designed and synthesized as electron donor unit, and at the same time, benzothiadiazole, benzoquinoxalines, thienopyrazines, benzotriazoles etc., which have electron withdrawing properties, are to be synthesized and selected as electron acceptor unites. And then, the soluble D-A type electrochromic conjugate polymers are prepared by the copolymerization of the electron donor unite and the electron acceptor unite. Some properties of the polymers, including solubility, aggregation, bandgap, color and dynamic parameters could be regulated by changing the structures of the triphenylamine derivatives and thiophenes derivatives, the structure and type of the electron acceptor unites, the ratio of the donor to acceptor unites, and the arrangements. According to the quantum chemical calculation results and experimental data, the relationship between the structure of the polymer and its optical properties are drawed, which will provide ideas for the synthesis of better, more use value of electrochromic conjugated polymers, and also provide basis and information for the actual application.

含三苯胺单元的共轭聚合物，因其具有良好的溶解性及电致变色性能而日益受到研究人员重视，但三苯胺及其衍生物单元与电子受体单元通过共聚反应制备可溶性D-A型电致变色聚合物的研究还鲜有报道，有必要加强。设计合成三苯胺衍生物、噻吩衍生物等作为电子供体单元，并同时合成苯并噻二唑、苯基喹喔啉、噻吩并吡嗪、苯并三氮唑及噻二唑喹啉胺等各类具有吸电子性质的化合物作为电子受体，然后通过共聚反应制备含三苯胺单元的可溶性D-A型电致变色共轭聚合物。通过改变三苯胺衍生物及噻吩类衍生物的的结构、电子受体的结构与类型、供受体的比例及排列方式等调控共轭聚合物的溶解度、聚集态、禁带、颜色及其他动力学特征。根据量子化学计算结果与实验数据分析，归纳聚合物的结构特点与其光电性质之间的关系，为设计更好的，更有使用价值的电致变色共轭聚合物提供思路，也为该领域的实际应用提供依据及信息。

含三苯胺单元的共轭聚合物，因其具有良好的溶解性及电致变色性能而日益受到研究人员重视，但三苯胺及其衍生物单元与电子受体单元通过共聚反应制备可溶性D-A型电致变色聚合物的研究还鲜有报道，有必要加强。设计合成三苯胺衍生物、噻吩衍生物等作为电子供体单元，并同时合成苯并噻二唑、苯基喹喔啉、噻吩并吡嗪、苯并三氮唑及噻二唑喹啉胺等各类具有吸电子性质的化合物作为电子受体，然后通过共聚反应制备含三苯胺单元的可溶性D-A型电致变色共轭聚合物。通过改变三苯胺衍生物及噻吩类衍生物的的结构、电子受体的结构与类型、供受体的比例及排列方式等调控共轭聚合物的溶解度、聚集态、禁带、颜色及其他动力学特征。根据量子化学计算结果与实验数据分析，归纳聚合物的结构特点与其光电性质之间的关系，为设计更好的，更有使用价值的电致变色共轭聚合物提供思路，也为该领域的实际应用提供依据及信息。