Copolyfluorenes containing carbazole or triphenylamine and Diethoxylphosphoryl groups in the side chains as white-light-emitting polymers
作者:Galina I. Nosova、Dmitry A. Lypenko、Ruslan Yu. Smyslov、Elena V. Zhukova、Ivan A. Berezin、Larisa S. Litvinova、Eugene I. Maltsev、Alexander V. Yakimansky
DOI:10.1016/j.polymer.2020.122978
日期:2020.12
New copolyfluorenes containing 4,7-di-2-thienyl-2,1,3-benzothiadiazole and 2,1,3-benzothiadiazole or derivatives of naphthalimide as luminophores were synthesized under microwave heating. Charge-transporting carbazole, triphenylamine, or diphenyloxadiazole groups were introduced into the side chains of polymers through 9,9-bis-(4-phenoxy)-2,7-fluorene units. Copolyfluorenes were also modified via insertion
在微波加热下,合成了含有4,7-二-2-噻吩基-2,1,3-苯并噻二唑和2,1,3-苯并噻二唑或萘二甲酰亚胺衍生物作为发光体的新型共聚芴。通过9,9-双-(4-苯氧基)-2,7-芴单元将电荷传输的咔唑,三苯胺或二苯基恶二唑基团引入聚合物的侧链。共聚芴也通过将10mol%的2,7- [9,9-双-(6′-二乙氧基磷酰基己基)]芴或二苯并噻吩-S,S-二氧化物共聚单体单元插入而改性。这项研究证明了化学组成,所研究聚合物的分子质量以及热处理对其膜的微观结构的影响。测定了合成的共聚芴的光致和电致发光特性。2,1.33 CD A -的电流效率1,和CIE 1931的xy色度坐标为(0.339 0.364),或7930 CDm⁻ 2,2.18 CD A - 1,和分别的(0.300 0.369)。揭示了活性层厚度对聚合物发光二极管的白色发射颜色的影响。