Synthesis and characterization of polyaniline-polyvinyl chloride blends doped with sulfamic acid in aqueous tetrahydrofuran

Sadia Ameen, Vazid Ali 1 , M. Zulfequar 1 , M. Mazharul Haq 2 ,  and Mushahid Husain 1
  • 1 Department of Physics, Jamia Millia Islamia, New Delhi, 110025, India
  • 2 Department of Chemistry, Jamia Millia Islamia, New Delhi, 110025, India


The temperature dependence of direct current (dc) conductivity was studied for various samples of polyaniline-polyvinylchloride (PANI-PVC) blended films. Polyaniline was doped with different concentrations of sulfamic acid in aqueous tetrahydrofuran (THF) and the blended films were prepared by varying the amount of doped PANI relative to a fixed amount of PVC. The dc conductivity of PANI-PVC blended films was measured to determine the effect of sulfamic acid (dopant) in the temperature range (300–400K). The mechanism of conduction is explained by a two-phase model. In order to evaluate the effect of the dopant, conductivity-derived parameters such as the pre-exponential factor (σ o) and the activation energy (ΔE) were calculated. The structural changes of polyaniline-PVC blended films were characterized by FTIR spectroscopy that explores information about the suitability of the dopant in the chemical doping process.

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  • [1] Moon Gyu Han and Seung Soon Im: “Morphological study of conductive polyaniline/polyimide blends. 1. determination of compatibility by small-angle x-ray scattering method”, Polymer, Vol. 42, (2001), pp. 7449–7454

  • [2] A.B. Kaiser, C.K. Subramaniam P.W. Gilberd and B. Wessling: “Electronic transport properties of conducting polymers and polymer blends”, Synth. Met., Vol. 69, (1995), pp. 197–200.

  • [3] Vazid Ali, Raminder Kaur, Neel Kamal, Sukhmehar Singh, S.C. Jain, H.P.S. Kang, M. Zulfequar and M. Husain: “Use of Cu+1 dopant and its doping effects on polyaniline conducting system in water and tetrahydrofuran”, J. Phys. Chem. Sol., (2005), pp. 1–6.

  • [4] Samrana Kazim, Vazid Ali, M. Zulfequar, M. Mazharul Haq and M. Husain: “Electrical, thermal, and spectroscopic studies of Te doped polyaniline”, Current Appl. Phys., (2006), in press.

  • [5] G.R. Valenciano, A.E. Job and L.H.C. Mattoso: “Improved conductivity of films of ultra high molecular weight polyethylene and polyaniline blends prepared from an m-cresol/decaline mixture”, Polymer, Vol. 41, (2000), pp. 4757–4760

  • [6] Kwang Sun Ryu, Bong Wong Moon, Jinsoo Job and Soo Ho Chang: “Characterization of highly conducting lithium salt doped polyaniline films prepared from polymer solution”, Polymer, Vol. 42, (2001), pp. 9355–9360.

  • [7] M. Ilyas, M. Zulfequar and M. Husain: “Anomalous dielectric behaviour in a GaxTe100-x alloys (0≤x≤10)”, Phys. B, Vol. 271, (1999), pp. 125–135.

  • [8] Zishan H. Khan, M. Manzar Malik, M. Zulfequar and M. Husain: “Electrical conduction mechanism in a Se80-x TexGa20 films(0≤x≤20)”, J. Phys. Cond. Matt., (1995), pp. 8979–8991.

  • [9] M. Zulfequar and A. Kumar: “Electrical conductivity and dielectric behaviour of hot-pressed AlN ceramic”, Adv. Ceramic Mat., Vol. 3, (1988), pp. 322–336.

  • [10] N.F. Mott and E.A. Davis: “Mott-hopping process in neodymium oxide thin films prepared on Si (100) substrates”, Philos. Mag., Vol. 7, (1970), pp. 22.

  • [11] M.A. Majeed Khan, M. Zulfequar, A. Kumar and M. Husain: “Conduction mechanism in amorphous Se75In25-x Pbx films”, Mat. Chem. Phys., Vol. 87, (2004), pp. 179–183.

  • [12] K. Kodama, T. Koshiba, H. Yamato and W. Wernet: “Electrical charge transport in polypyrrole/sulfated poly(β-hydroxyethers) blends”, Polymer, Vol. 42, (2001), pp. 1533–1539.

  • [13] A.L. Sharma, S. Annapoorni and B.D. Malhotra: “Synthesis and characterization of polynitrosoaniline”, Polymer, Vol. 42, (2001), pp. 8307–8310.

  • [14] Mei-Rong Huang, Xin-Guili, Yu-Liang Yang, Xue-Song Wang and Deyue-Yan: “Oxidative copolymers of aniline with o-Toluidine: Their structure and Thermal Properties”, J. Appl. Polymer Sci., Vol. 81, (2001), pp. 1838–1847.

  • [15] Palle Swapna Rao and D.N. Sathyanarayana: “Synthesis of electrically conducting copolymer of aniline with o/m-amino benzoic acid by an inverse emulsion pathway”, Polymer, Vol. 43, (2002), pp. 5051–5058.


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