Electrochemical Properties Of Poly(Aminobenzene Sulfonic)Phosphazene Derivative Grafted Speek Proton Exchange Membrane

A type of poly(aminobenzene sulfonic)phosphazene derivative grafted SPEEK was synthesized which were confirmed by FT-IR and NMR analysis. And a series of grafted SPEEK proton exchange membranes with 65% sulfonation degree were prepared. Comparing to SPEEK membranes, all the properties increased. The proton conductivity reached 4.21x10(-3) S/cm with 15% grafting degree and the methanol permeability coefficient increased at 2.72x10(-7) cm(2).s(-1) to achieve the using requirements of DMFC proton exchange membrane.