Abstract
Polymer blend electrolytes, where PEO-PMMA polymer blend is used as polymer host matrix, doped with AgNO3 and plasticized with ethylene carbonate (EC) and Al2O3 as nano-filler were synthesized using the solution cast techniques. The polymer films were characterized by impedance spectroscopy, XRD, DSC, SEM, FT-IR and ionic transport mea-surements. The results indicate an enhancement in conductivity of PEO-PMMA-AgNO3-EC polymer electrolytes. The ionic conductivity of the polymer films is also found to increase with temperature. Electrical properties of polymer films in the framework of dielectric and modulus formalism are studied and discussed
Highlights
Solid polymer electrolytes have attracted attention since more than three decades due to their practical applications as well as for fundamental knowledge [1,2,3,4,5]
The results indicate an enhancement in conductivity of poly(ethylene oxide) (PEO)-poly(methyl methacrylate) (PMMA)-AgNO3-ethylene carbonate (EC) polymer electrolytes
Researchers have worked on many host polymers e.g. poly(ethylene oxide) (PEO), poly(methyl methacrylate) (PMMA), poly(vinyl chloride) (PVC) and poly(vinyl acetate) (PVA)etc. [6,7,8,9,10] to optimize electrical conductivity and other properties for their practical application as polymer electrolytes
Summary
Solid polymer electrolytes have attracted attention since more than three decades due to their practical applications as well as for fundamental knowledge [1,2,3,4,5]. [6,7,8,9,10] to optimize electrical conductivity and other properties for their practical application as polymer electrolytes Among these polymers, PEO is still an active candidate for polymer electrolytes [6] due to its good salvation power, having single helical structure which supports the fast ionic conduction and many more physicochemical properties but their practical applications are limited due to semi-crystalline nature of PEO at room temperature. PEO is still an active candidate for polymer electrolytes [6] due to its good salvation power, having single helical structure which supports the fast ionic conduction and many more physicochemical properties but their practical applications are limited due to semi-crystalline nature of PEO at room temperature It is reported by Radhakrishnan et al [11] that crystallization of PEO can be controlled by its blending with amorphous polymer. Johan et al [6] reported that the addition of nano-particles creates disorder in polymer electrolytes which in turn favors the amorphousity resulting in enhanced ionic transport
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