International E-publication: Publish Projects, Dissertation, Theses, Books, Souvenir, Conference Proceeding with ISBN.  International E-Bulletin: Information/News regarding: Academics and Research

Poly-dispersive Nature of relaxation times Characteristics of Poly-(diamino-naphthalene) doped Poly-(vinyl-alcohol) films from AC impedance analysis

Author Affiliations

  • 1Department of Chemistry, Govt. Auto. Science College, Jabalpur MP, INDIA, Pin- 482001, INDIA
  • 2 Department of Physics, Govt. Auto. Science College, Jabalpur MP, INDIA, Pin- 482001, INDIA
  • 3 Department of Physics, Global Engineering College, Jabalpur MP, INDIA, Pin- 482001, INDIA

Res.J.chem.sci., Volume 4, Issue (8), Pages 82-87, August,18 (2014)


The conducting polymer doped inside a macromolecular doped film through chemically oxidative polymerization process, will be a promising field in the material science. This kind of multifunctional conducting materials will also be interesting in terms of biocompatibility, low cost and environmental stability. The alternating current conductivity measurement is an important experimental technique to probe the microscopic images of a highly disordered system and all the studies provided fundamental and technological applications. Polaron defect occurs due to incorporation of conducting polymer inside the synthetic hydrogel, therefore for quantifying and investigating the disordered composites system, use of alternating current conductivity was required. In this paper less known conducting polymer poly-(diamino naphthalene) (PDAN) is doped with poly-(vinyl alcohol) (PVA), is being investigated. The composite films are obtained by chemical-oxidation polymerization method. The experimental PDAN doped PVA films of different weight concentration are being analyzed by AC impedance spectroscope at different temperature and frequency range. The calculated AC conductivities found are 4.65 X 10-6 Scm-1 for 0.591gm and 6.28 X 10-6 Scm-1 for 0.791gm PDAN doped PVA films.The complex impedanceplotsoobtained was semicircular in nature, shows the single AC current mechanism. Again by Cole-Cole impedance plot, the value of parameter "α” so obtained lies between zero and one (i.e. 0.88 and 0.89 for both weight concentration of PDAN doped PVA films), which shows the poly-dispersive nature of relaxation time.


  1. Dutta P., Biswas S., Ghosh M., De S.K., Chatterjee S., The dc and ac Conductivity of Polyaniline and Polyalcohol Blends., Synth. Met., 122, 455-461 (2000)
  2. Bello A., Laredo E. and Grimau M., Distribution of relaxation times from dielectric spectroscopy using Monte Carlo simulated annealing: Application to PVDF, Phys. Rev. B, 60(18), 12764–12774 (1999)
  3. Tuncer E. and Macdonald J.R., Comparison of methods for estimating continuous distributions of relaxation times, J. Appl.Phys.,99, 074106 (2006)
  4. Sonkawade R.G., Kumar V., Kumar L., Annapoormi S. and Vaijapurkar S.G., Effect of gamma ray and neutron radiation on poly(anilne) conducting polymer, Indian J. Pure and Appl. Phy., 48, 453-456 (2010)
  5. Oyama M., Sato M. and Ohasaka T., Preparation of Thin Polymeric Films on Electrode Surfaces by Electropolymerization of Aromatic Compounds with Amino Groups, Synth Met.,29, E501 (1989)
  6. Azzem M.A., Yousef U.S., Limosin D. and Pierre G., Electropolymerization of 1, 5-diaminonaphthalene in acetonitrile and in aqueous solution, Synth. Met.,63, 79 (1994)
  7. Goswami L., Sarma N.S. and Chowdhury D., Determining the Ionic and Electronic Contribution in Conductivity of Polypyrrole/Au Nanocomposites, J. Phys. Chem. C, 115, 19668-19675 (2011)
  8. Li L., Wan X. Bo, Xue G., Impedance characteristics of Poly-(furan) films, ChineseJ. Poly. Sci.,20(5), 419-423 (2002)
  9. Pant H.C., Patra M.K., Negi S.C., Bhatia A., Vadera S.R., Kumar N., Studies on conductivity and dielectric properties of polyaniline–zinc sulphide composites, Bull. Mater. Sci.,29(4), 379-384 (2006)
  10. Tuncer E., Serdyuk Y.V. and Gubanski S.M., Dielectric Mixtures: Electrical Properties and Modelling, IEEE Trans.,9, 809 (2002)
  11. Oliveira, Santos M.V.B.dos, Santos C.G.dos, Melo, Electrical properties of PVA/PPY blends, Synth. Met., 135-136, 447-448 (2003)
  12. Benseddik E., Makhlouki M., Bernede J.C., Lefrant S., Pron A., XPS studies of environmental stability of polypyrrole-poly(vinyl alcohol) composites, Synth. Met.,72, 237-242 (1995)
  13. Basavaraja C., Kim N.R., Jo E.A., Pierson R. and Huh D.S., AC Conductivity Studies of Polyaniline- polymannuronate Nanocomposites, Bull. Korean Chem. Soc.,30(7), 1543-1546 (2009)
  14. Bedre M.D., Deshpande R., Salimath B., Abbaraju V., Preparation and Characterization of Polyaniline-Co3O4 Nanocomposites via Interfacial Polymerization, American J. Matel. Sci.,2(3), 39-43 (2012)
  15. Vishnuvardhan T.K., Kulkarni V.R., Basavaraja C., Raghavendra S.C., Synthesis, characterization and a.c. conductivity of polypyrrole/Y composites, Bull. Mater. Sci.,29, 77–83 (2006)
  16. Roy D.K., Himanshu A.K. and Sinha T.P., Study of impedance spectroscopy conducting polymer prepared with the use of water soluble support polymer, Indian J. Pure appl. Phys.,43, 787-793 (2005)
  17. Johnson B.M., Read D.C., Christensen P., Hamnett A. and Armstrong R.D., J. Electroanal. Chem.,103, 364 (1994)
  18. Panero S., Prosperi P., Passerini S., Scrosati B. and Perlmutter D.D., Characteristics of Electrochemically Synthesized Polymer Electrodes VI . Kinetics of the Process of Polypyrrole Oxidation, J. Electrochem. Soc., 136, 3729 (1989)
  19. Ho C., Raistrick I.D., Huggins R.A., Application of AC Techniques to the Study of Lithium Diffusion in Tungsten Trioxide Thin Films, J.Electrochem.Sco., 127, 343 (1980)
  20. Cole K., Cole R., Dispersion and Absorption in Dielectrics I. Alternating Current Characteristics, J. Chem. Phys.,9, 341–351 (1941)
  21. Jonscher A.K., Dielectric Relaxation in Solids (Chelsea Dielectric London) (1983)
  22. Hedvig P., Adam Higler, Dielectric Spectroscopy of Polymers, Bristol, 283 (1977)
  23. Elwakil A.S., Maundy B., Extracting the Cole-Cole impedance model parameters without direct impedance measurement, Electro. Lett.,46(2), (2010)