MICROSTRUCTURAL ANALYSIS OF POLYPYRROLE F ILMS BY MECHANICAL SPECTROMETRY

Dynamical mechanical spectrometry experiments were performed on polypy rrole films in order to provide some informations on the microstructur e through the analysis of the molecular motions in the material. Two m echanical relaxations have been detected at -60 and 155 degrees C at 1 Hz. The low temperature relaxation is due to water molecules motions in the polymer. The high temperature relaxation should come from polym er backbone motions.