Characteristics of polyaniline electrosynthesized in propylene carbonate -Medium in the presence of di- and trichloroacetic acids

In the present work the characterization of polyaniline electrosynthesized in propylene carbonate medium in the presence of di- and trichloroacetic ac ids was performed using different techniques. The electrochemical response by cyclic voltammetry showed redox processes due to the formation of polaro n and bipolaron and polymer degradation. The characterization by infrared a nd UV-visible spectroscopies indicated that the polymers are in the emerald ine salt form with perchlorate anions incorporated. The films produced with both acids in propylene carbonate media presented a compact morphology as observed by scanning electron microscopy. By testing the polyaniline film p roduced in selected conditions in a lithium battery environment it was foun d that it presents a high coulombic efficiency, promising for battery appli cations.