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FT-IR spectroscopic investigation of ionic interactions in PPG 4000: AgCF3SO3 polymer electrolyte by S. Austin Suthanthiraraj; R. Kumar; B. Joseph Paul is a Chemistry article available to read on EtoBox.

What is FT-IR spectroscopic investigation of ionic interactions in PPG 4000: AgCF3SO3 polymer electrolyte about?

The effect of salt concentration on the ubiquitous ionic interactions observed in the case of the silver ion conducting polymer electrolyte system poly(propylene glycol) (PPG)-silver triflate has been investigated using Fourier transform infrared (FT-IR) spectroscopy as a probe for the characterization of the local environment of the triflate ion in PPG-based polymer electrolytes. The maximum free anion concentrations of symmetric and asymmetric SO 3 stretching modes in the case of poly(propylene glycol) complexed with silver triflate (AgCF 3 SO 3 ) corresponding to the ether oxygen metal cation ratios from 2:1 to 6:1 have been investigated in detail. The present Fourier transform infrared spectral studies of the C O C stretching mode have shown reduction in the intensity, due to the decrease of salt concentration. The splitting of vibrational modes has been analyzed in terms of free ions, ion pairs and aggregates. The bands of SO 3 symmetric stretching mode appearing at 1032 and 1038 cm -1 in the chosen polymer electrolyte material have been assigned to free ions and ion pairs respectively.

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Author

S. Austin Suthanthiraraj; R. Kumar; B. Joseph Paul

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Pergamon Press Ltd.; Elsevier BV (ISSN 1386-1425)

Published

2009

Language

EN

Field

Chemistry (Physical Sciences)