Journal of Advanced Dielectrics, Volume. 11, Issue 4, 2150020(2021)

Investigation of the effect of in-situ grown PPy on low frequency dielectric properties and other properties of PVA–PVP blend film

[in Chinese]1、*, [in Chinese]1,2, [in Chinese]3, [in Chinese]3, and [in Chinese]1
Author Affiliations
  • 1Department of Physics, School of Science Gujarat University, Ahmedabad, Gujarat, India
  • 2Applied Sciences and Humanities Department SAL College of Engineering, Ahmedabad, Gujarat, India
  • 3Institute for Plasma Research, Gandhinagar Gujarat, India
  • show less

    Present study is carried out to understand the effect of conducting polymer, polypyrrole (PPy) on structural, morphological, ther-mal and dielectric properties of bio-compatible polymer blend film of polyvinyl alcohol (PVA) and polyvinyl pyrrolidone (PVP). The growth of PPy in the matrix of PVA–PVP was analyzed using XRD, FT-IR and SEM studies. The shifting in positions and broadening of XRD diffraction peaks of PVA–PVP-PPy from that of PVA–PVP indicates the structural modification and reduction in the crystallinity of the PVA–PVP due to incorporation of PPy. The SEM studies suggest scattered growth of PPy in PVA–PVP matrix at lower concentration of pyrrole monomer. As the monomer concentration is increased, the uniform and interconnected growth of PPy was observed in SEM micrographs. The TGA thermograms show faster thermal degradation of PVA–PVP- PPy films at lower temperature as compared to PVA–PVP films. The blend films of PVA–PVP- PPy exhibited enhanced values of dielectric constant and ac conductivity as compared to the virgin blend film which are observed to increase with increasing con-centration of PPy. The high dielectric constant with high ac conductivity exhibited by PVA–PVP-PPy film suggests its possible application as flexible dielectric material for the development of biosensors, energy storage devices in field of green organic electronics.

    Tools

    Get Citation

    Copy Citation Text

    [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. Investigation of the effect of in-situ grown PPy on low frequency dielectric properties and other properties of PVA–PVP blend film[J]. Journal of Advanced Dielectrics, 2021, 11(4): 2150020

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Received: Apr. 10, 2021

    Accepted: --

    Published Online: Feb. 22, 2022

    The Author Email: (sushmajha31@gmail.com)

    DOI:10.1142/s2010135x2150020x

    Topics

    Please enter the answer below before you can view the full text.
    4-1=
    Submit