eng Oriental Scientific Publishing Company Material Science Research India 0973-3469 2020-12-30 17 3 276 280 17054 article Complex Impedance Spectroscopic Studies of PMMA(80,70,60,50) : PC(10,20,30,40): PVP(10): LiClO4(5) Polymer Solid Electrolyte Systems. R. Swarnalatha 1 A. Sadananda chary 2 Venkata Ramana Jeedi 3 Yalla Mallaiah 4 S. Narender Reddy 5 Department of Physics, University College of Engineering (A), Osmania University, Hyderabad, Telangana, India. Department of Physics, University College of Science, Osmania University, Hyderabad, Telangana, India. Department of Physics, B V Raju Institute of Technology, Narsapur, Medak Dist, Telangana, India. Department of Physics, University P.G College Secunderabad, Osmania University, Hyderabad, Telangana, India. Department of Physics, Stanley College of Engineering and Technology for Women, Abids, Hyderabad, Telangana, India.

Polymer solid electrolytes PMMA(80,70,60,50): PC(10,20,30,40):PVP(10):LiClO4(5) were synthesized according to stoichiometric ratios using solution cast method. FTIR study confirms the good complexation among the constituent materials in the polymers matrix. Complex impedance and electric modulus studies are carried out and explained. From cole-cole plots, maximum decrement of resistance is observed at a threshold ratio 70Wt% PMMA: 20Wt% PC: 10Wt% PVP: 5Wt% LiClO4 and this could be due to the high mobility of the Li+ ion in the polymer network due to the plasticizer. The plasticizer plays an important role in decreasing the viscosity of the system, which in turn favors the mobility of segmental motion of polymer network and fast ion motion in the polymer. Real and Imaginary electric modulus spectra show the presence of relaxation peaks and confirm that the polymer solid electrolyte is an ionic conductor.

 https://www.materialsciencejournal.org/vol17no3/complex-impedance-spectroscopic-studies-of-pmma80706050-pc10203040-pvp10-liclo45-polymer-solid-electrolyte-systems/ Bulk Resistance Electric Modulus Ionic Conductor Segmental Motion