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Conductivity and thermal behavior of proton conducting polymer electrolyte based on poly ( N-vinyl pyrrolidone)

The polymer electrolytes based on poly N-vinyl pyrrolidone (PVP) and ammonium thiocyanate (NH 4SCN) with different compositions have been prepared by solution casting technique. The amorphous nature of the polymer electrolytes has been confirmed by XRD analysis. The shift in T g values and the melti...

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Published in:European polymer journal 2006-10, Vol.42 (10), p.2672-2677
Main Authors: Ramya, C.S., Selvasekarapandian, S., Savitha, T., Hirankumar, G., Baskaran, R., Bhuvaneswari, M.S., Angelo, P.C.
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container_title European polymer journal
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creator Ramya, C.S.
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description The polymer electrolytes based on poly N-vinyl pyrrolidone (PVP) and ammonium thiocyanate (NH 4SCN) with different compositions have been prepared by solution casting technique. The amorphous nature of the polymer electrolytes has been confirmed by XRD analysis. The shift in T g values and the melting temperatures of the PVP–NH 4SCN electrolytes shown by DSC thermo-grams indicate an interaction between the polymer and the salt. The dependence of T g and conductivity upon salt concentration have been discussed. The conductivity analysis shows that the 20 mol% ammonium thiocyanate doped polymer electrolyte exhibit high ionic conductivity and it has been found to be 1.7 × 10 −4 S cm −1, at room temperature. The conductivity values follow the Arrhenius equation and the activation energy for 20 mol% ammonium thiocyanate doped polymer electrolyte has been found to be 0.52 eV.
doi_str_mv 10.1016/j.eurpolymj.2006.05.020
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subjects Activation energy
Applied sciences
Conductivity analysis
Electrical, magnetic and optical properties
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Poly ( N-vinyl pyrrolidone)
Properties and characterization
Proton conductor
title Conductivity and thermal behavior of proton conducting polymer electrolyte based on poly ( N-vinyl pyrrolidone)
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