芴-三苯胺有机共聚物的合成及电致发光性能研究

Based on the molecular design strategies, we plan to synthetize a series of dibromo substituted triphenylamine derivatives by varying phenoxy（alkoxyl groups）substitution position and number, and introducing different functional groups such as pyrenyl and oxadiazole moieties. A series of conjugated fluorene-triphenylamine organic copolymers containing aryl ether derived from 9,9-diphenylfluorene and different positions (m,p) dibromo substituted triphenylamine derivatives were prepared by the palladium-catalyzed Suzuki coupling reaction. Highly oriented nanofibers were prepared from as-synthetized organic copolymers via electrospinning technique. Study on the ground and excited state structure of triphenylamine, aryl ether, organic polyfluorene with the quantum theory methods; calculating their affinity energies, ionization energy and electron emission information; illustrating the relationship of copolymer between structure and luminescent property form theory. We systematically investigate the photoelectric properties of fluorene-triphenylamine organic copolymers nanofiber including hole transporting and electroluminescenece properties. We discuss the photoelectric properties influence law of the different substituent groups structure and conjugated level on fluorene-triphenylamine organic copolymers.

本项目拟合成具有烷氧基（苯氧基）和溴代苯取代基的三苯胺单体，在不同的取代基中，有三苯胺与一个烷氧基（苯氧基）相联，也有与三个相联。溴代苯取代基与三苯胺上氮原子有对位相联，也有间位相联。用这些三苯胺衍生物在对位或间位上与9,9-二苯基芴通过Suzuki偶合反应合成含芳醚的芴-三苯胺有机共聚物，并借助高压静电纺丝技术将获得的有机共聚物制备成高取向的纳米纤维。采用量子理论方法研究三苯胺、芳醚、有机聚芴的基态和激发态结构，计算其亲和能、电离能和电子发射等信息，从理论上阐明芴-三苯胺有机共聚物的结构与发光性能的关系。利用现代分析测试手段研究这类芴-三苯胺有机共聚物纳米纤维材料的光电性能，重点是空穴传输性能和电致发光性能等。通过三苯胺取代基结构的不同和共聚物主链共轭结构的差异，来探讨对芴-三苯胺有机共聚物光电性能的影响规律。

采用量子理论方法研究含甲氧基（苯氧基）三苯胺［4-溴-N-(4-溴苯基)-N-(4-甲氧苯基)-苯胺］、芳醚、有机聚芴的基态和激发态结构，计算其亲和能、电离能和电子发射等信息，从理论上阐明芴-三苯胺有机共聚物的结构与发光性能的关系。通过实验手段成功合成含有甲氧基（苯氧基）和溴代苯取代基的三苯胺单体，利用［4-溴-N-(4-溴苯基)-N-(4-甲氧苯基)-苯胺］等单体在对位或间位上与9,9-二辛基-2,7-二溴代芴、9,9-二苯基芴通过Suzuki偶合反应合成含芳醚的芴-三苯胺有机共聚物，并借助高压静电纺丝技术将获得的有机共聚物制备成高取向的纳米纤维。利用现代分析测试手段研究这类芴-三苯胺有机共聚物纳米纤维材料的发光材料的光电性能，重点是空穴传输性能和电致发光性能等。通过三苯胺取代基结构的不同和共聚物主链共轭结构的差异。.