A New Synthetic Route to Soluble Polyquinolines with Tunable Photophysical, Redox, and Electroluminescent Properties
作者:Christopher J. Tonzola、Maksudul M. Alam、Samson A. Jenekhe
DOI:10.1021/ma051280b
日期:2005.11.1
conjugated copolymers, poly(2,2‘-arylene-4,4‘-bis(4-alkylquinolines))s, which are soluble in organic solvents. The thermal, electrochemical, photophysical, and electroluminescent properties of the new polyquinolines varied with the arylene linkage, including p-phenylene, 4,4‘-biphenylene, stilbene, 5,5‘-bithienylene, bis(thienyl)vinylene, and 3,7-phenothiazinylene. The new conjugated polymers combined high
当与二乙酰基单体共聚时,带有二烷基的新单体3,3'-dinonanoylbenzidine与六种新的交替共轭共聚物,即聚(2,2'-亚芳基-4,4'-双(4-烷基喹啉))s合成,可溶于有机溶剂。新型聚喹啉的热,电化学,光物理和电致发光性质随亚芳基键的变化而变化,包括p-亚苯基,4,4'-联亚苯基,二苯乙烯,5,5'-亚噻吩基,双(噻吩基)亚乙烯基和3,7-吩噻嗪基。新的共轭聚合物将玻璃化转变温度高(110-254°C)与准可逆的电化学还原反应结合在一起,由此可以估算出2.72-3.00 eV的电子亲和力。光学带隙在2.19至2.86 eV之间变化,而光致发光发射最大值从蓝绿色(477 nm)到深红色(646 nm)变化。一些具有交替的供体-受体结构的新聚合物显示出强大的分子内电荷转移。中等亮度的电致发光(最高209 cd / m 2取决于共聚物的亚芳基键合,使用蓝绿色,绿色,黄色,橙色和深