Thermal activation of conducting polypyrrole/zeolite

In this paper the influence of dopant on the electrical properties of polymer prepared by chemical reaction method is investigated using the standard four point probe technique. Polymers are formed by using pyrrole and Iron (III) Chloride 6-hydrate (FeCl3.6H2O) as well as zeolite as dopants. The current-voltage was measured from 300 to 400 K. The current-voltage characteristic of all samples shows that measured voltage increased linearly with current. It was found that conductivity increases with temperature and concentration of the dopant. As expected, the d.c. conductivity (?) of polypyrrole FeCl3/PPy/Zeolite was found slightly higher than FeCl3/PPy which to be considered that zeolites have altered and enhanced the conductivity of the samples. The increases of conductivity may consider have improved the thermal stability of the blends. An explanation is proposed based on the character and conduction mechanism of FeCl3/PPy/Zeolite