Anisotropic microphase separated membranes from electrospun mats of sulfonated/non-sulfonated poly (ether ketone)s as proton exchange membranes

Anisotropic proton exchange membranes composed of five layers with different contents of ionic groups across the membrane were prepared by electrospinning of sulfonatedand non-sulfonated poly(ether ketone)(PEK) simultaneously. To prepare non-porous and defect free membranes from electrospun mats, non-sulfonated fibers as hydrophobic part ofmembrane were melted by hot-pressing and covered sulfonated fibers (hydrophilic part).Prepared membranes showed good proton conductivities, thermal stability, mechanical strength and also suitable water absorption and swelling ratios

Keywords:

proton exchange membrane , poly(ether ketone) , electrospinning , anisotropic