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Dielectric and electric properties of plasticized PEO‐AgCF 3 SO 3 ‐SiO 2 nanocomposite polymer electrolyte system
Author(s) -
Gondaliya Nirali,
Kanchan D.K.,
Sharma Poonam,
Jayswal Manish S.
Publication year - 2012
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.22362
Subject(s) - materials science , dielectric , dissipation factor , composite material , plasticizer , nanocomposite , polymer , ionic conductivity , electrolyte , relaxation (psychology) , permittivity , ionic bonding , ethylene glycol , dielectric loss , conductivity , relative permittivity , modulus , polymer chemistry , chemical engineering , ion , chemistry , organic chemistry , optoelectronics , electrode , psychology , social psychology , engineering
The effect of plasticizer poly(ethylene glycol) (PEG) on dielectric and electrical properties of an ionically conducting polymer nanocomposite electrolyte PEO: AgCF 3 SO 3 : SiO 2 : PEG has been investigated. The variation of relative dielectric constant and tangent loss peak with frequency have been discussed. The ionic and polymer segmental motions have been analyzed by electrical modulus and dielectric permittivity. The electrical modulus formalism is used to study the ionic relaxation process in these composites in terms of conductivity relaxation time. On addition of plasticizer, the modulus peak shifts toward higher frequency side suggesting the speeding up of the relaxation time. The frequency dependence of AC conductivity follows the universal power law. POLYM. COMPOS., 2012. © 2012 Society of Plastics Engineers