Synthesis and multi-electrochromic properties of asymmetric structure polymers based on carbazole-EDOT and 2, 5–dithienylpyrrole derivatives
作者:Bin Hu、Chunyang Li、Zengchen Liu、Xinlei Zhang、Wen Luo、Lin Jin
DOI:10.1016/j.electacta.2019.03.050
日期:2019.5
The electrochemical and electrochromic properties of polymer films were different from that of their homopolymers, which could be attributed to the similar copolymerization effect of asymmetric structure. Different linked positions also led to different features, PBDDC film showed more colors (orange, yellow green, green and blue) than that of PBDTC film (yellow, green and purple blue). However, after
两种新型不对称结构单体3,6-Bis-(2,3-dihydro-thieno [3,4-b] [1,4] dioxin-5-yl)-9- [4-(2,5-di -噻吩-2-基-吡咯-1-基)-苯基] -9H-咔唑(BDTC)和2,7-双-(2,3-二氢噻吩并[3,4-b] [1,4]设计并合成了二恶英-5-基)-9- [4-(2,5-二硫代苯-2-基-吡咯-1-基)-苯基] -9H-咔唑(BDDC)。两种单体都可以被电聚合以形成相关的聚合物膜。聚合物薄膜的电化学和电致变色性质与其均聚物不同,这可以归因于不对称结构的相似共聚作用。不同的链接位置也导致不同的功能,PBDDC胶片显示的颜色(橙色,黄绿色,绿色和蓝色)比PBDTC胶片(黄色,绿色和紫色蓝色)显示的颜色更多。但是,在引入2之后,2'-Bi(3,4-乙氧基二氧噻吩(BIEDOT),由于EDOT单元的主导作用,所得共聚物表现出相似的电致