Thermal and spectral stability of fluorescent copolymers containing tetraphenylthiophene-quinoline unit
作者:Chung-Tin Lai、Rong-Hong Chien、Chi-Wei Liu、Jin-Long Hong
DOI:10.1002/pola.24635
日期:2011.5.1
alternative copolymers containing tetraphenylthiophene‐quinoline (TP‐Qu) moiety were synthesized from Friedländer reaction between o‐aminoketone and acetyl groups. With the wholly aromatic‐quinoline chain structure, the alternative donor–acceptor copolymers of PTPQu and PTPTPQu are rigid materials with high glass transitions (Tg = 245 and 295 °C, respectively) and with high thermal stability (with ≤2%
通过邻氨基酮与乙酰基之间的Friedländer反应合成了含有四苯基噻吩-喹啉(TP-Qu)部分的荧光替代共聚物。具有全芳香族喹啉链结构,PTPQu和PTPTPQu的其他供体-受体共聚物是具有高玻璃化转变温度(分别为T g = 245和295°C)和高热稳定性(重量损失≤2%)的刚性材料。在500°C时)。多个苯基侧环继承了PTPQu和PTPTPQu共聚物,它们在普通有机溶剂中具有良好的溶解性,这有助于轻松制造发光二极管(LED)器件。CV研究导致可逆的E ox /发作PTPQu和PTPTPQu共聚物的最大电压分别为0.78和0.75V。在膜态下具有高量子产率(ϕ F s,对于PTPQu = 0.59,对于PTPTPQu = 0.74),两种共聚物及其器件在将退火温度改变为时,分别显示出稳定的光致发光(PL)和电致发光(EL)光谱。至少高于250°C。在250°C(或300°C)下退火后,