Thermal Analysis and Dc Conductivity of Polypyrrole / Yttrium Oxide Composites

Vishnuvardhan, T. K.

doi:10.15623/ijret.2013.0209085

IJRET

2013

DOI: 10.15623/ijret.2013.0209085

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Thermal Analysis and Dc Conductivity of Polypyrrole / Yttrium Oxide Composites

T. K. Vishnuvardhan¹

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Cited by 3 publications

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Synthesis, characterization and DC conductivity studies of polypyrrole/copper zinc iron oxide nanocomposites

Shanthala¹,

Devi²,

Murugendrappa³

2017

Journal of Asian Ceramic Societies

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Polypyrrole and polypyrrole/copper zinc iron oxide (copper zinc ferrite) nanocomposites were synthesized by in-situ polymerization using Ammonium Persulphate as oxidising agent. The nanocomposites were synthesized by mixing polypyrrole and copper zinc iron oxide in different weight percentages. The formation of nanocomposites and changes in the structural properties were investigated by characterizing the samples using XRD, FTIR, SEM and EDX analysis. The size of the particle was analysed by XRD using Scherrer equation and found to be in 20 nm range. DC conductivity was measured in the temperature range 300 K-473 K. The DC conductivity was found to be constant for the temperature range from 300 K-433 K. But the conductivity showed an exponential increase for the temperature 433 K-473 K, and it obeys Arrhenius relation. Activation energies were evaluated from Arrhenius plots for all compositions. Results show that incorporation of additive material significantly reduces the activation energy for the DC conductivity of the composites, and the decrease in the activation energy is also dependent on the amount of the nanoparticles in the composites. As the polymers are used in the various manufacturing products, this study indicates the possibility of using such polymers in the form of composites as superior insulating material in the fields of electrical or electronic insulation and allied areas.

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Synthesis, characterization and DC conductivity studies of polypyrrole/copper zinc iron oxide nanocomposites

Shanthala¹,

Devi²,

Murugendrappa³

2017

Journal of Asian Ceramic Societies

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In-situ preparation and characterization of pyrrole and tert-butyl 1-pyrrole-carboxylate on barium titanate/poly(acrylonitrile-co-methylacrylate) nanoparticles

Sagirli

Unsal

Kayalı

et al. 2016

Reactive and Functional Polymers

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DC conductivity studies of iron decorated polypyrrole

Patel

Revanasiddappa

Rangaswamy

et al. 2021

J. Phys.: Conf. Ser.

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Fe-Ppy was synthesized by in situ polymerization with varying the concentration of oxidizing agent (FeCl,3) and green tea extract. As prepared polymer samples have been characterized by XRD, FTIR, SEM and TEM. DC conductivity was measured in the temperature range 303-378 K. Obtained results reveals that, the conductivity slightly increases with increase in temperature. Fe (0.31M)-Ppy-10ml green tea extracted sample exhibited highest conductivity as compared to the other composites. Activation energy found to increases up to Fe-(0.92M)-Ppy 30ml sample and it was maximum for Fe (1.54M)-Ppy 50ml sample.

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Thermal Analysis and Dc Conductivity of Polypyrrole / Yttrium Oxide Composites

Abstract: Abstract--

Cited by 3 publications

References 6 publications

Synthesis, characterization and DC conductivity studies of polypyrrole/copper zinc iron oxide nanocomposites

Synthesis, characterization and DC conductivity studies of polypyrrole/copper zinc iron oxide nanocomposites

In-situ preparation and characterization of pyrrole and tert-butyl 1-pyrrole-carboxylate on barium titanate/poly(acrylonitrile-co-methylacrylate) nanoparticles

DC conductivity studies of iron decorated polypyrrole

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