alkyloxy side chain exhibits a lower ionization potential than that of CDTDP due to the stronger donor character of the substituted benzene unit, which narrows the bandgap value to 1.15 eV compared to that of 1.3 eV for CDTDP. Both copolymers exhibited interesting electrochromism. Spectroelectrochemical properties are shown for both oxidation and reduction. Optical switching is demonstrated and it is shown
由4,6-双-(3'-
十二烷基
噻吩-2'-基)
噻吩并[3,4- c]组成的新型低带隙供体-受体功能共聚物CDTDP和CDT
DOP分别通过以下方法合成] [1,2,5]
噻二唑(DT)和2,5-
二十二烷基-1,4-亚苯基(DP)或2,5-
二十二烷基氧基-1,4-亚苯基(
DOP)结构单元相应的共聚单体在高沸点溶剂中的快速Suzuki偶联反应。报道了连接在苯环上的烷基和烷氧基侧链对光物理,热致变色和电
化学性质的影响。CDTDP在溶液的可见光谱区域具有长波最大值的吸收,在溶液中的波长为401-410 nm和673-703 nm,在薄膜中的波长为461-467 nm和827-841 nm。溶液中CDT
DOP的吸收发生了明显的红移,一直延伸到近红外区域。CDT
DOP显示出更明显的热致变色。两种共聚物都具有相似的高电子亲和力值。具有烷基氧基侧链的CDT
DOP的电离电势比CDTDP的电离电势低,这是因为取代