Humidity Sensing Study of Polypyrrole (PPy)-Poly (Vinyl Acetate) (PVAc) Composite

Composites of polypyrrole and polyvinyl acetate were prepared by chemical polymerization method. The composite in the form of a film was used as humidity sensor. Sensitivity to humidity was studied for the films prepared by different concentration of oxidizing agent. It was noted that the sample film which was prepared by high concentration of oxidization showed better sensitivity to humidity.