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Arlette A. Santiago, Joel Vargas, Mikhail A. Tlenkopatchev, Mar López-González, Evaristo Riande
Journal of Membrane Science, Volumes 403–404, June 2012
Abstract
This work reports the electrochemical characteristics of a new cation-exchange membrane based on a polynorbornene functionalized with substituted dicarboximide side groups, specifically hydrogenated poly(N-4-oxybenzenesulfonic acid-2,3,5,6-tetrafluorophenyl-exo-endo-norbornene-5,6-dicarboximide). A thorough study on the electrochemical characteristics of the membrane involving osmotic flow, electromotive forces of concentration cells and proton conductivity is reported. This work shows that the polymer membrane exhibits a proton conductivity of 2.24 S/m at 30 °C, the same order of magnitude as that reported for Nafion membranes at the same temperature. The proton permselectivity of the membrane is also discussed.
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