Preparation of polypyrrole by GVD method and its electrical properties

Polypyrrole film was prepared using iodine vapor. Spectroscopic measurements showed that the polypyrrole films had a chain structure of not only pyrrole units but also some saturated pyrrolidine units or partially saturated units and hydroxyl groups. The polypyrrole film had a conductivity of 10/sup -1/ (S/cm). The temperature dependence of its conductivity was similar to that of electrochemically prepared polypyrrole.