IONIC CONDUCTIVITY STUDIES ON POLY BLEND (PVA+PVP+NH4H2PO4) ELECTROLYTE
Polymer electrolytes are an important class of materials and have been used in high energy batteries, fuel cells, gas sensors, display devices etc. Polymer blending is one of the desirable techniques for the development of new polymeric materials. In the present work, ammonium salts have been reported as good donors of protons to the polymer matrix. The films of PVA/PVP blend (50/50) filled with different concentrations of NH4H2PO4 were prepared by solvent casting techniques using distilled water as a common solvent for proton conducting membrane. The prepared films were investigated by different techniques such as XRD, FTIR and AC Impedance spectroscopy. XRD studies reveal the amorphous nature of the polymer blend-salt complexes that produce greater ionic conductivity. The FTIR analysis confirms the complex formation of the polymer with salt. From the AC Impedance spectroscopy, the conductivity of pure PVA+PVP is found to be of the order of 10-7 SCm-1 at room temperature and the ionic conductivity of the 15 mol% NH4H2PO4 doped PVA+PVP polymer complex has been found to be the order of 10-4 SCm-1 at room temperature.
N. RAJESWARI S. SELVASEKARAPANDIAN M. PRABU G. HIRANKUMAR C. SANJEEVIRAJA
Department of Physics, Kalasalingam University, Krishnankoil-626 190,Tamil Nadu, India Department of Physics, Alagappa University, Karaikudi 630003, India
国际会议
The 12th Asian Conference on Solid State Ionics(第十二届亚洲固态离子学会议暨第十五届中国固态离子学会议)
武汉
英文
164-170
2010-05-02（万方平台首次上网日期，不代表论文的发表时间）