Dithienobenzimidazole‐containing conjugated donor–acceptor polymers: Synthesis and characterization
作者:Jared D. Harris、Markus Stihl、Hans‐Werner Schmidt、Kenneth R. Carter
DOI:10.1002/pola.29284
日期:2019.1
facilitating a further understanding of the systems' electronic and geometric structure. Polymers were titrated with acid and base to take advantage of their amphiprotic imidazole moiety and their optical response monitored with ultraviolet–visible spectroscopy. Finally, pristine polymer thin‐films were treated with acid and base to evaluate (de)protonation's effect on system electronics, but thin‐film degradation
基于相对未充分开发的单体5,8-二溴-2- [5-(2-(2-己基癸基)-2-噻吩基] -1] H-二硫代[3,2- e:2 ]合成两种新的共轭聚合物′,3'- g ]苯并咪唑(二硫代苯并咪唑,DTBI),以及4,7-双[4-己基-5-(三甲基锡烷基)-2-噻吩基] -2,1,3-苯并噻二唑(BTD)或2,描述了6-双(三甲基锡烷基)-4,8-双(5-(2-乙基己基)噻吩-2-基)苯并[1,2- b:4,5- b ']二噻吩(BDT)。聚合物通过Stille缩聚反应合成,并通过传统方法进行表征(11 H NMR,凝胶渗透色谱法,基质辅助激光解吸/电离飞行时间质谱,热重分析,差示扫描量热法,紫外可见光谱,光致发光和循环伏安法。在合成之前,通过DFT计算对三聚体结构进行建模,以促进对系统的电子和几何结构的进一步了解。用酸和碱滴定聚合物,以利用其两性咪唑部分的优势,并通过紫外可见光谱对它们的