The preparation of polyaniline/polypyrrole conductive polymer films on polycarbonate-coated Pt electrodes

In this study, free-standing polymer films were obtained first with an elec trochemical coating of polyaniline and then with a coating of polypyrrole o n an insulating polycarbonate-coated Pt electrode. The films contained vary ing amounts of polyaniline and polypyrrole obtained by varying the electrol ysis time, and their conductivities were determined. The Raman spectra of t he films taken from the electrode side were similar to those of pure polyan iline, whereas the spectra of the solution side were identical to those of pure polypyrrole. The resistance change in the films between -15 and +120 d egrees C revealed that the films were sensitive to temperature. (C) 2000 Jo hn Wiley & Sons, Inc.