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Title: Dielectric property of NiTiO{sub 3} doped substituted ortho-chloropolyaniline composites

Ortho-chloropolyaniline (OCP)-NiTiO{sub 3} composites have been synthesized via in-situ polymerization of ortho-chloroaniline with various weight percentages of NiTiO{sub 3.} Fourier Transform Infrared spectroscopic studies of Ortho-chloropolyaniline and its composites indicated the formation of composites as a result of Vander Waal's interaction between OCP and NiTiO{sub 3} particles. Surface morphology of OCP and OCP-NiTiO{sub 3} composites were studied using Scanning Electron Microscope (SEM). The SEM micrographs indicated a modified morphology after the composite formation. Dielectric properties and electric modulus of OCP and OCP-NiTiO{sub 3} composites have been investigated in the frequency range of 50 Hz – 5 MHz. It has been noticed that electrical resistance decreases with increase in weight percentage of NiTiO{sub 3} particles in polymer matrix as well as with applied frequency. The display of semicircular arcs in Cole-Cole plots indicates the formation of series resistor and capacitor in network causing a decrease in the relaxation time and as a result conductivity enhances in these composites. The facile and cost effective synthesis process and excellent dielectric and conductivity response of these materials makes them promising materials for practical applications.
Authors:
;  [1] ;  [2] ;  [1] ;  [3] ;  [4] ;  [5]
  1. Department of Physics, PES Institute of Technology, BSC, Bangalore- 560100 (India)
  2. Department of Materials Science, Gulbarga University, Gulbarga-585106, Karnataka (India)
  3. (Saudi Arabia)
  4. Department of Physics, Veerashaiva College, Bellary - 583 104, Karnataka (India)
  5. Department of Chemistry, PES Institute of Technology, BSC, Bangalore - 560100 (India)
Publication Date:
OSTI Identifier:
22251872
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Advances; Journal Volume: 3; Journal Issue: 11; Other Information: (c) 2013 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; DIELECTRIC MATERIALS; DIELECTRIC PROPERTIES; DOPED MATERIALS; ELECTRIC CONDUCTIVITY; FOURIER TRANSFORMATION; INTERACTIONS; POLYMERS; RESISTORS; SCANNING ELECTRON MICROSCOPY