HCl protonated polymeric PANI-ZnS nanocomposites and measurement of their robust dielectric, optical and thermal performance

Polyaniline -Zinc sulfide (PANI-ZnS) nanocomposites were prepared by in-situ polymerization of aniline monomer with varying amount of ZnS nanoparticles. The as-pepared polymeric nanocomposites were characterized with Fourier Transform Infrared Spectroscopy (FTIR), X-ray Diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM), Energy Dispersive X - ray (EDX), Thermogravimetric Analysis (TGA), Differential Thermal Analysis (DTA) and UV-vis spectroscopy. The structure and morphology of the nanocomposites were investigayed by FTIR, XRD and FESEM. FESEM micrographs showed the spherical shape of the ZnS nanoparticles. The UV-vis spectrum revealed the enrichment of doping level for HCl doped PANI-ZnS nanocomposites with frequency range 200 nm-800 nm wavelength. The dielectric properties of the nanocomposites were also investigated by LCR meter with frequency range 200 Hz-5 MHz. The DC conductivity showed an decrease in conductivity of PANI-ZnS nanocomposites from 7.17 × 10−8 to 6.48 × 10−4 for PANI-(10%, 20%, 30% and 40%) ZnS nanocomposites.