Poly(aniline)/cellulose acetate composites: Conductivity and electrochromic properties

Abstract

Composites of poly(aniline) and cellulose acetate have been prepared by two methods: 1) casting of films from a suspension of poly(aniline) in a cellulose acetate solution and 2) deposition of cellulose acetate films onto electro-chemically prepared poly(aniline) films. The first material had its conductivity measured as function of poly(aniline) content, it varies from 10 −7 to 10 −3 S/cm for 29 to 42%. The second had its electrochromic properties studied by spectroelectrochemical experiments using ITO electrodes. In this case we show that the cellulose acetate film does not preclude the redox processes of polyaniline.