Preparation of Gelatin-assisted Polypyrrole-Poly(3,4-ethylenedioxythiophene) Composites

摘要

Conductive polymer composite was synthesized by the polymerization of pyrrole with 3,4-ethylenedioxythiophene using ammonium persulfate as an oxidant with different concentrations of gelatin dispersed in aqueous medium along with the polymerization. Differently from pure polypyrrole-poly(3,4-ethylenedioxythiophene) (PPy-PEDOT) copolymer, the gelatin-assisted composites showed good solubility in aqueous media. The prepared PPy-PEDOT/gelatin composites were identified with Fourier-transform infrared, UV-visible spectroscopy, and X-ray diffraction. Morphological analysis and temperature-dependent direct current conductivity of PPy-PEDOT/gelatin composites were carried out. Obtained results revealed that added gelatin greatly increased conductivity due to the improved mobility of charge carriers.