Abstract Electrochromic polymers have attracted considerable attention mainly because of their potential applications in the fields of smart windows, intelligent displays and advanced devices. Herein we synthesized a dual-electrochromic polymer by introducing oligoaniline and viologen to polymeric architecture as pendants (POV). Structural identification of the monomers and polymer is performed using FTIR and 1H NMR spectroscopy. The resulting POV exhibits favorable electrochemical activity in both anodic and cathodic potential areas. Lower redox potentials are observed in the CV measurement, ascribed to the complex interplay between viologen and oligoaniline moieties. Furthermore, POV film displays approving dual-electrochromic behavior in both anodic and cathodic potential areas with desirable contrast value, moderate switching times, and acceptable coloration efficiency. This work not only presents a deep understanding of the optical-electrical dual-modulation mechanism but also paves the way for their future applications.

中文翻译：

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双电致变色聚合物轴承低聚苯胺和紫精吊坠：合成和性能

摘要 电致变色聚合物因其在智能窗、智能显示和先进设备等领域的潜在应用而备受关注。在此，我们通过将低聚苯胺和紫精作为悬垂物 (POV) 引入聚合物结构来合成双电致变色聚合物。单体和聚合物的结构鉴定是使用 FTIR 和 1H NMR 光谱进行的。由此产生的 POV 在阳极和阴极电位区域都表现出良好的电化学活性。在 CV 测量中观察到较低的氧化还原电位，这归因于紫精和低聚苯胺部分之间复杂的相互作用。此外，POV 薄膜在阳极和阴极电位区域均显示出良好的双电致变色行为，具有理想的对比度值、适中的开关时间、和可接受的着色效率。这项工作不仅深入了解了光电双调制机制，而且为其未来的应用铺平了道路。