화학공학소재연구정보센터
Journal of Applied Polymer Science, Vol.58, No.12, 2251-2257, 1995
Preparation of Poly(Vinylidene Fluoride)-Polypyrrole Composite Films by Electrochemical Synthesis and Their Properties
Composite films of poly(vinylidene fluoride-polypyrrole (PVDF-PPy) were prepared by electrochemical polymerization of pyrrole on a very thin PVDF matrix him (similar to 0.5 mu m). The polymerization was carried out in aqueous media using stainless steel, coated with PVDF matrix, as a working electrode, and p-toluene sulfonate (PTS), as a dopant. The films were prepared at different voltages for different durations of time in order to optimize the conditions of composite formation. The resulting films were characterized by studying IR spectra, conductivity, SEM, XRD, and tensile strength measurements. The mechanical properties of the composites were found to have improved, while the conductivity remained more or less same as that of pure PPy.