Abstract
In situ polymerization of pyrrole initiated by ammonium persulphate was carried out in the presence of molybdenum trioxide by the chemical oxidation method. The obtained composites containing various amounts of molybdenum trioxide (up to 50 wt %) exhibit semi-crystalline behavior. FTIR-spectroscopy showed that the stretching frequencies are shifted towards the higher frequency side. The surface morphologies of these composites studied using SEM indicates that molybdenum trioxide particles are embedded in polypyrrole chain to form multiple phases. Thermal analysis also implies that the composites have stronger stability than the pure polypyrrole. The dimensions of molybdenum trioxide particles in the matrix have a significant influence on the thermo-electric power values.
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