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No Abstract AvailableDOI: http://dx.doi.org/10.3329/sja.v11i2.18413 SAARC J. Agri., 11(2): 182-191 (2013)

Polyaniline-polyvinyl alcohol (PANI-PVA) interpenetrating network composite film is successfully prepared by in situ polymerization of aniline within PVA film embedded with different concentrations of potassium dichromate (K 2 Cr 2 O 7 ). The resulted composite is characterized by UV-Visible spectroscopy, SEM and XRD, TGA techniques and confirmed the formation of interpenetrating network formation of PANI within PVA matrix. Electrical conductivity of the composite films increase from 10 -6 to 10 -2 S/cm with the increase in the loading of dichromate from 10 -4 to 10 -2 M. Further, exposing in humidity environment, the conductivity of the composite films increases from 14 to 100% with the increase in humidity conditions from 11.3 to 84.3%.