Anisotropy in conductivity of stretched polyaniline film

Summary form only given. Solution cast polyaniline film was stretched and the electrical conductivity was measured in the direction of the parallel and perpendicular to the chain orientation. The electrical conductivity of the unstretched film was 28 S cm/sup -1/ while the /spl sigma//spl par/ and /spl sigma//spl perp/ were 79 and 17 S cm/spl -1/ for a specimen of elongation ratio 300 %. The /spl sigma//spl par/ and a /spl sigma//spl perp/ values tend to approach a saturation at higher elongation ratio. The effect of solvent content and oxidation state will be discussed as well.