@article{Nerkar_Rajwade_Jaware_Jog_2024, title={Synthesis and characterization of Polyvinyl Alcohol-Polypyrrole-Silver nanocomposite polymer films}, volume={11}, url={https://oiccpress.com/international-journal-of-nano-dimension/article/synthesis-and-characterization-of-polyvinyl-alcohol-polypyrrole-silver-nanocomposite-polymer-films/}, abstractNote={The present paper describes the preparation and characterization of Polyvinyl Alcohol-Polypyrrole-Silver Nanocomposite (PVA-PPy-Ag NC) films. The prepared films were conducting, freestanding, flexible, and robust. Silver nanoparticles (Ag NPs) were synthesized from an aqueous solution of silver nitrate using trisodium citrate as a reductant. The casting solution for the films was prepared by in-situ chemical oxidative polymerization of pyrrole. This was done in the presence of Polyvinyl Alcohol and suspension of pre-synthesized silver nanoparticles. The absorption band at 424 nm in UV-Visible Spectroscopy of silver nanoparticles confirmed the formation of Ag nanoparticles. Scanning Electron Microscopy (SEM) studies revealed that spherical Ag NPs were produced with an average size of ~ 25 nm. The morphological analysis of the synthesized PVA-PPy-Ag nanocomposite films was carried out using Transmission Electron Microscopy (TEM). It was observed in the TEM images that Ag nanoparticles were well dispersed and conjugated in the PVA-PPy matrix. The structure of the produced films was studied by Fourier transform infrared (FTIR) Spectroscopy and X-Ray Diffraction (XRD). X-ray diffraction analysis exhibited the crystalline nature of the silver nanoparticles with a face-centered cubic (fcc) structure. The synthesized PVA-PPy-Ag nanocomposite films can be further utilized as potential material for the fabrication of gas sensors.}, number={3}, journal={International Journal of Nano Dimension (Int. J. Nano Dimens.)}, publisher={OICC Press}, author={Nerkar, Dattatray and Rajwade, Madhav and Jaware, Suryakant and Jog, Milind}, year={2024}, month={Feb.}, keywords={Silver nanoparticles, PVA., Freestanding Films, Nanocomposites, Polypyrrole} }