Citation: S. Guhan, N. Arun Kumar, D. Sangeetha. SULPHONATED POLY ETHER ETHER KETONE/ POLYVINYL ALCOHOL/PHOSPHOTUNGSTIC ACID COMPOSITE MEMBRANES FOR PEM FUEL CELLS[J]. Chinese Journal of Polymer Science, ;2009, 27(2): 157-164. shu

SULPHONATED POLY ETHER ETHER KETONE/ POLYVINYL ALCOHOL/PHOSPHOTUNGSTIC ACID COMPOSITE MEMBRANES FOR PEM FUEL CELLS

Corresponding author: D. Sangeetha,
Received Date: 2 November 2007
Revised Date: 17 December 2007

Composite membranes with polyvinyl alcohol (PVA), sulphonated poly ether ether ketone (SPEEK) and phosphotungstic acid (PWA) were prepared using solvent casting method. The proton conductivities of such membranes were found to be in the order of 10-3 S/cm in the fully hydrated condition at room temperature as measured by impedance spectroscopy. The crystalline properties were studied by X-ray diffraction analysis. The thermal properties were determined by TGA and DSC techniques. The tensile strength and percentage elongation were obtained from UTM studies. Water and methanol uptake of these membranes were studied.
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