Synthesis of conducting polypyrrole by radiolysis polymerization method

Conducting polypyrrole (PPy) has been synthesized by the in situ gamma radiation-induced chemical oxidative polymerization method. This method takes advantages of the specialties of radiation-induction, and a highly uniform polymer morphology was obtained. The resultant nano-size polypyrrole particles were characterized by Elemental Analysis, Fourier transform infrared (FT-IR), scanning electron microscope (SEM), transmission electron microscopy (TEM) and X-ray Diffraction (XRD). Measurements of polymer particle sizes were obtained at <500 nm. A standard four-point probe revealed that the chemical synthesis of PPy has a good electrical property. Also thermal stability, checked by Thermal Gravimetric Analysis in air, was ensured by this novel synthesis. Copyright (C) 2007 John Wiley & Sons, Ltd.