A novel electrochromic polymer poly(2,3-dimethyl-2,3-dihydrothieno[3,4-b][1,4]dioxine) (PEDOT-Me₂) based on 3,4-ethylenedioxythiophene (EDOT) with symmetric dimethyl pendant groups was successfully synthesized through electrochemical polymerization in 0.1 M LiClO₄/ACN electrolyte. The polymer film displays reversible electrochromism switching between blue neutral state (− 1.2 V) and transmissive sky blue oxidized state (0.5 V) with an enhanced optical contrast (ΔT = 30%) in comparison with the traditional PEDOT (ΔT = 25%).

中文翻译：

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蓝色至透射电致变色聚（2,3-二甲基-2,3-二氢噻吩并[3,4-b] [1,4]二恶英）（PEDOT-Me 2），具有改善的光学对比度

基于3,4-乙烯二氧噻吩（EDOT）和对称二甲基的新型电致变色聚合物聚（2,3-二甲基-2,3-二氢噻吩并[3,4-b] [1,4]二恶英）（PEDOT-Me ₂）在0.1 M LiClO ₄ / ACN电解质中通过电化学聚合成功合成了侧基。与传统的PEDOT（ΔT = 25％）相比，该聚合物薄膜显示出可逆的电致变色，可在蓝色中性态（-1.2 V）和透射天蓝色氧化态（0.5 V）之间切换，并具有增强的光学对比度（ΔT = 30％）。）。