In this study, a series of sulfonamide-crosslinked SPEEK were prepared by in-situ gelation between sulfonimidazole-activated SPEEK and diamine. The all prepared SPSA showed the increased IEC and improved proton-transport properties comparable with those of Nafion. Mechanical properties of the SPSA membranes, such as bending stiffness, modulus, and dimensional stability were effectively enhanced with the increased DOC, due to the chemical networking effect. We demonstrated that the SPSA, exhibiting superior mechanical bending characteristics compared to that of Nafion, will be quite beneficial for development of high-force generating polymer actuators.

Sulfonamide-crosslinked sulfonated poly(ether ether ketone) membranes for ionic polymer-metal composites

243rd National Meeting (2012)

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