Microscopic and dielectric studies of ZnO nanoparticles loaded in ortho-chloropolyaniline nanocomposites

  • Aashish Roy
  • Ameena Parveen
  • Raghunandan Deshpande
  • Ravishankar Bhat
  • Anilkumar Koppalkar
Research Paper


We have studied the preparation of zinc oxide nanoparticles loaded in various weight percentages in ortho-chloropolyaniline by in situ polymerization method. The length of the O-chloropolyaniline tube is found to be 200 nm and diameter is about 150 nm wherein the embedded ZnO nanoparticles is of 13 nm as confirmed from scanning electron microscopy as well as transmission electron microscopy characterizations. The presence of the vibration band of the metal oxide and other characteristic bands confirms that the polymer nanocomposites are characterized by their Fourier transmission infrared spectroscopy. The X-ray diffraction pattern of nanocomposites reveals their polycrystalline nature. Electrical property of nanocomposites is a function of the filler as well as the matrix. Cole–Cole plots reveal the presence of well-defined semicircular arcs at high frequencies which are attributed to the bulk resistance of the material. Among all nanocomposites, 30 wt% shows the low relaxation time of 151 s, and hence it has high conductivity.


Nanocomposites Ortho-chloropolyaniline Zinc oxide Scanning electron microscopy Transmission electron microscopy 



We thank VGST, Bangalore Government of Karnataka VGST Department of Information Technology, Biotechnology and Science & Technology Financial support (SMYSR-D38/7). We thank J M Deshpande, Retd. EE, KPCL for editing works.


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Copyright information

© Springer Science+Business Media Dordrecht 2012

Authors and Affiliations

  • Aashish Roy
    • 1
  • Ameena Parveen
    • 2
  • Raghunandan Deshpande
    • 3
  • Ravishankar Bhat
    • 5
  • Anilkumar Koppalkar
    • 4
  1. 1.Department of Materials EngineeringIndian Institute of ScienceBangaloreIndia
  2. 2.Department of PhysicsFirst Grade Degree CollegeGuirmethkal, YadgirIndia
  3. 3.Department of Pharmaceutical ChemistryH.K.E. Society’s Matoshree Taradevi Institute of Pharmaceutical SciencesGulbargaIndia
  4. 4.Department of PhysicsS. S. Margol CollegeShahabadIndia
  5. 5.Department of Materials Science, Nanotechnology LaboratoryGulbarga UniversityGulbargaIndia

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