In order to improve the optical properties and redox stability of poly(3,4-ethylenedioxythiophene) (PEDOT) without changing its electrochemical and electrochromic behaviour, it was supported with alkyl-substituted polyhedral oligomeric silsesquioxane (POSS) cage. The corresponding copolymers were obtained electrochemically via potentiostatic or potentiodynamic methods and compared to the parent homopolymers. Electrochemical polymerization of EDOT and POSS containing EDOT called EDOT-POSS in various monomer feed ratios was performed in an electrolyte solution of 0.1 M TBAPF₆ dissolved in a mixture of dichloromethane and acetonitrile (1/3: v/v). Just as PEDOT, the copolymers represented the similar band gap (1.61 eV), redox and electrochromic behaviors. On the other hand, when compared to the parent PEDOT, the presence of POSS cages in the copolymer backbone improved the redox stability and optical properties of PEDOT such as higher percent transmittance change (65% at 621 nm), higher transparency at oxidized state, lower switching time (∼1.0 s) and higher coloration efficiency (463 cm²/C for 95% switching) as well as higher electrochemical stability (86% of its electroactivity retains after 1750 cycles under ambient conditions).

为了提高聚（3,4-乙撑二氧噻吩）（PEDOT）的光学性能和氧化还原稳定性，而又不改变其电化学和电致变色行为，它用烷基取代的多面体低聚倍半硅氧烷（POSS）笼支撑。相应的共聚物通过恒电位或恒电位方法电化学获得，并与母体均聚物进行比较。在0.1 M TBAPF ₆的电解液中进行EDOT和POSS的电化学聚合，该POS以不同的单体进料比包含EDOT的EDOT包含EDOT。溶于二氯甲烷和乙腈（1/3：v / v）的混合物中。就像PEDOT一样，共聚物表现出相似的带隙（1.61 eV），氧化还原和电致变色行为。另一方面，与母体PEDOT相比，共聚物主链中POSS笼的存在改善了PEDOT的氧化还原稳定性和光学性能，例如更高的透射率百分比变化（在621 nm处为65％），在氧化态下具有更高的透明度，更低的切换时间（约1.0 s）和更高的着色效率（对于95％的切换，为463 cm ² / C）以及更高的电化学稳定性（在环境条件下经过1750次循环后，其电活性保留了86％）。