Structural influence of hydrophobic diamine in sulfonated poly(sulfide sulfone imide) copolymers on medium temperature PEM fuel cell

The S-PSI60 having 8 nm sized ionic clustered morphology showed 250 mA cm−2 of current density at 0.6 V and 175 mW cm−2 of maximum power density at 120 °C, 35% RH, 1.5 atm.