N-substituted-2,5-dithienil-pyrroles have demonstrated to be an interesting alternative for the preparation of π-conjugated polymers with good electrochromic properties. Herein the 4-(4-(2,5-di(thiophen-2-yl)-1H-pyrrol-1-yl)benzyl)aniline (TPTBA) was chemically synthetized and its electrochemical behavior and polymerization was studied. The obtained film was characterized by electrochemical and spectroelectrochemical methods. Poly-TPTBA presents a quasi-symmetrical reversible redox system characteristic to well-ordered systems. This explained by the presence of the aniline moiety which can favor a cross-linking of the polymer backbone. Spectroelectrochemical studies reveal a moderate rapid electrochromic transition between both redox states, requiring 2 seconds to alternate between each color: 430 nm (discharged state) and 800 nm (charged state).

否-substituted-2,5-dithienil-pyrroles 已被证明是制备具有良好电致变色特性的 π-共轭聚合物的有趣替代品。本文化学合成了 4-(4-(2,5-di(thiophen-2-yl)-1H-pyrrol-1-yl)benzyl)aniline (TPTBA)，并研究了其电化学行为和聚合反应。通过电化学和光谱电化学方法对所得薄膜进行了表征。Poly-TPTBA 呈现准对称可逆氧化还原系统特征，以有序系统。这可以通过苯胺部分的存在来解释，苯胺部分有利于聚合物主链的交联。光谱电化学研究揭示了两种氧化还原状态之间适度快速的电致变色转变，需要 2 秒在每种颜色之间交替：430 nm（放电状态）和 800 nm（充电状态）。