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چکیده
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Poly(methyl methacrylate-co-nitrophenyl maleimide) (P(MMA-co-NMI)) and poly(methyl methacrylate-cohydroxyphenyl maleimide) (P(MMA-co-HMI)) copolymers were synthesized using free radical polymerization reaction. Proton exchange membranes fuel cell (PEMFC) by dry-phase inversion method were fabricated using different concentrations of these copolymers and phosphotungstic acid (PWA) as an additive of the proton conductive agent. To identify and investigate were used FT-IR, IEC, Wu, SEM, TGA, DSC, and DTG and proton conductivity (Impedance Spectroscopy) methods. Results revealed applying (P(MMA-co-HMI)) and PWA significantly improved the proton conductivity of membrane (2.6×10−1 S.cm−1 ) due to improving the interaction between the functional groups of PWA (H3O+ ions, O atoms) and MMA-co-HMI copolymer (OH, C=O functional groups).
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