EFFECTS OF MONOSUBSTITUTED PHENOL ADDITIVES ON THE ELECTRICAL AND MECHANICAL-PROPERTIES OF ELECTROCHEMICALLY SYNTHESIZED POLYPYRROLE

Polypyrrole (PPy) which is electrochemically synthesized with a mono-s ubstituted phenol additive has enhanced conductivity, thermal stabilit y and tensile strength. From elemental analysis data, mass spectra and FT-IR spectra, there is no obvious evidence that the additive is inco rporated in PPy. Electronic absorption spectra and laser Raman spectra show that the additive reduces the polaron peak and enhances the bipo laron peak. The increased structural regularity is considered to be th e reason for the improvement of the electrical and mechanical properti es.