期刊
IONICS
卷 19, 期 5, 页码 777-785出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11581-012-0797-6
关键词
PEO-PMMA polymer blend; XRD; SEM; Plasticizer; Relaxation
资金
- UGC, New Delhi, India
Polyethylene oxide-polymethyl methacrylate (PEO-PMMA) polymer blend electrolyte system complexed with silver salt having different ethylene carbonate (EC) concentrations was prepared using solution cast technique. Complex formation and change in structural and microstructural properties have been studied by X-ray diffraction, Fourier transform infrared, and scanning electron microscopy analysis. The thermal properties of polymer films have been examined by the differential scanning calorimetry technique. Addition of plasticizer is observed to lower melting temperature. Electrical response of polymer films has been measured as a function of EC concentration and temperature using complex impedance spectroscopy. Complex impedance data are used to analyze the conductivity, permittivity, and modulus formalism to understand the conduction mechanism. The temperature dependence of electrical conductivity of polymer electrolytes shows a sudden rise at the melting temperature of PEO.
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