Investigation of the effect of in-situ grown PPy on low frequency dielectric properties and other properties of PVA-PVP blend film
Present study is carried out to understand the effect of conducting polymer, polypyrrole (PPy) on structural, morphological, thermal 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 w...
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doaj-da8d8c2032a44403a6ee55218fda61092021-09-09T11:55:42ZengWorld Scientific PublishingJournal of Advanced Dielectrics2010-135X2010-13682021-08-011142150020-12150020-1110.1142/S2010135X2150020X10.1142/S2010135X2150020XInvestigation of the effect of in-situ grown PPy on low frequency dielectric properties and other properties of PVA-PVP blend filmSushma Jha0Vaishali Bhavsar1K. P. Sooraj2Mukesh Ranjan3Deepti Tripathi4Department of Physics, School of Science, Gujarat University, Ahmedabad, Gujarat, IndiaDepartment of Physics, School of Science, Gujarat University, Ahmedabad, Gujarat, IndiaInstitute for Plasma Research, Gandhinagar, Gujarat, IndiaInstitute for Plasma Research, Gandhinagar, Gujarat, IndiaDepartment of Physics, School of Science, Gujarat University, Ahmedabad, Gujarat, IndiaPresent study is carried out to understand the effect of conducting polymer, polypyrrole (PPy) on structural, morphological, thermal 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 concentration 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.http://www.worldscientific.com/doi/epdf/10.1142/S2010135X2150020Xpolyvinyl alcoholpolyvinyl pyrrolidonepolypyrrolethermal degradationdielectric |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Sushma Jha Vaishali Bhavsar K. P. Sooraj Mukesh Ranjan Deepti Tripathi |
spellingShingle |
Sushma Jha Vaishali Bhavsar K. P. Sooraj Mukesh Ranjan Deepti Tripathi Investigation of the effect of in-situ grown PPy on low frequency dielectric properties and other properties of PVA-PVP blend film Journal of Advanced Dielectrics polyvinyl alcohol polyvinyl pyrrolidone polypyrrole thermal degradation dielectric |
author_facet |
Sushma Jha Vaishali Bhavsar K. P. Sooraj Mukesh Ranjan Deepti Tripathi |
author_sort |
Sushma Jha |
title |
Investigation of the effect of in-situ grown PPy on low frequency dielectric properties and other properties of PVA-PVP blend film |
title_short |
Investigation of the effect of in-situ grown PPy on low frequency dielectric properties and other properties of PVA-PVP blend film |
title_full |
Investigation of the effect of in-situ grown PPy on low frequency dielectric properties and other properties of PVA-PVP blend film |
title_fullStr |
Investigation of the effect of in-situ grown PPy on low frequency dielectric properties and other properties of PVA-PVP blend film |
title_full_unstemmed |
Investigation of the effect of in-situ grown PPy on low frequency dielectric properties and other properties of PVA-PVP blend film |
title_sort |
investigation of the effect of in-situ grown ppy on low frequency dielectric properties and other properties of pva-pvp blend film |
publisher |
World Scientific Publishing |
series |
Journal of Advanced Dielectrics |
issn |
2010-135X 2010-1368 |
publishDate |
2021-08-01 |
description |
Present study is carried out to understand the effect of conducting polymer, polypyrrole (PPy) on structural, morphological, thermal 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 concentration 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. |
topic |
polyvinyl alcohol polyvinyl pyrrolidone polypyrrole thermal degradation dielectric |
url |
http://www.worldscientific.com/doi/epdf/10.1142/S2010135X2150020X |
work_keys_str_mv |
AT sushmajha investigationoftheeffectofinsitugrownppyonlowfrequencydielectricpropertiesandotherpropertiesofpvapvpblendfilm AT vaishalibhavsar investigationoftheeffectofinsitugrownppyonlowfrequencydielectricpropertiesandotherpropertiesofpvapvpblendfilm AT kpsooraj investigationoftheeffectofinsitugrownppyonlowfrequencydielectricpropertiesandotherpropertiesofpvapvpblendfilm AT mukeshranjan investigationoftheeffectofinsitugrownppyonlowfrequencydielectricpropertiesandotherpropertiesofpvapvpblendfilm AT deeptitripathi investigationoftheeffectofinsitugrownppyonlowfrequencydielectricpropertiesandotherpropertiesofpvapvpblendfilm |
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1717761114704445440 |