Synthesis via direct (hetero)arylation polymerization, electrochemical and optical properties of poly (3,4-disubstituted)thiophenes
作者:Jérémie Grolleau、Stéphanie Legoupy、Pierre Frère、Frédéric Gohier
DOI:10.1016/j.polymer.2019.121811
日期:2019.11
Some poly (3,4-disubstituted)thiophenes bearing both cyano and alkoxy or thioalkoxy groups have been synthesized by direct (hetero)arylation polymerization (DHAP) of 2-iodo-3,4-disubstituted thiophenes. The electron donor and acceptor properties of substituents in positions 3 and 4 allow to adjust the HOMO and LUMO levels. On the other hand, in order to avoid the polymer solubility problems, long branched
一些带有氰基和烷氧基或硫代烷氧基的聚(3,4-二取代)噻吩已经通过2-碘-3,4-二取代噻吩的直接(杂)芳基化聚合(DHAP)合成。在位置3和4上的取代基的电子给体和受体性质允许调节HOMO和LUMO能级。另一方面,为了避免聚合物溶解性问题,还引入了长支链或非支链烷基链。因此,具有烷氧基的聚合物导致在可见光谱的波长范围内完全吸收,而在硫代烷氧基的存在下,可见光谱的吸收仅是部分吸收。理论计算表明,硫会产生扭曲,导致聚合物链不平整。