on EDOT (3,4-ethoxylene dioxy thiophene) and quinoxaline derivates were designed and synthesized through Stille coupling reaction, and further polymerized by electrochemical polymerization for electrochromic application. Specially, a quinoxaline-based acceptor with bulky and rigid camphor group was introduced into the polyEDOT backbone, which was demonstrated to be effective for the improvement of
本研究通过Stille偶联反应设计并合成了三种基于EDOT(3,4-乙二氧基
噻吩)和
喹喔啉衍
生物的新型供体-受体型单体,并通过电
化学聚合进一步聚合用于电致变色应用。特别是,在聚EDOT主链中引入了具有庞大而刚性
樟脑基团的
喹喔啉基受体,这被证明可有效提高电致变色性能。相应的氧化还原活性聚合物P
CQ-EDOT和P
CQ-DEDOT表现出透明的氧化态和强大的开关稳定性。聚合物P
CQ-EDOT在 0.7 V 的低外加电位下显示出优异的电致变色性能,在 647 nm 处具有高光学对比度(超过 50%)、短切换时间(约 0.5 s)和高着色效率(427 cm 2 C -1)。