Electrochromic Response Capability Enhancement with Pentiptycene‐Incorporated Intrinsic Porous Polyamide Films

Enhancing switching response capability of electrochromic (EC) polymers has been a topical issue. Herein, the H‐shaped nonplanar pentiptycene scaffold is successfully introduced into the polyamide film derived from N,N′‐bis(4‐aminophenyl)‐N,N′‐di(methoxyphenyl)‐1,4‐phenylenediamine (TPPA), and the resulting copolymer shows enhanced EC behaviors, including lower oxidation potential and shorter switching response time, as compared to the corresponding TPPA‐derived homopolymer. The incorporation of the nonplanar rigid pentiptycene scaffold into the electrochromic polyamide derived from N,N′‐bis(4‐aminophenyl)‐N,N′‐di(methoxyphenyl)‐1,4‐phenylenediamine decreases the oxidation potential and shortens the switching response time.