摘要：

PURPOSE:To obtain the subject composite polymer having high electric conductivity and composed of an electrochromic thin film having improved color characteristics and mechanical strength by passing electric current at a constant current density through a solution containing an acid-form aniline in contact with an acid-form metal phthalocyaninesulfonic acid. CONSTITUTION:An aniline having acid form is made is made to contact with a metal phthalocyaninesulfonic acid having acid form (e.g. nickel phthalocyaninetetrasulfonic acid). A preparatorily ion-exchanged Nafion(R) (a resin for ion-exchange membrane) is cast on the surface of an electrode by solution casting, the electrode is immersed in the solution obtained above and the aniline is polymerized by passing electric current through the solution at a constant current density of about 0.01-5.0mA/cm<2> for about 1-10min to obtain the objective composite polymer of a polyaniline having electric conductivity and composed of an electrochromic thin film having improved color characteristics and mechanical strength.

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