Abstract
The state of sulfonic acid groups in a thoroughly dried and slightly hydrated Nafion membrane has been analysed applying infrared spectroscopy. IR spectra in thevOH stretching vibration region were analysed in detail. A computer-curve resolution technique was used to determine band parameters of each OH band. The results of this analysis indicate a rather complex process of association of sulfonic groups in the Nafion membrane. The association of these groups in the Nafion membrane differs in several respects from that in the polystyrenesulfonic acid membrane which results from the differencies in membrane structures, both on molecular and supermolecular level.
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Ostrowska, J., Narębska, A. Infrared study of hydration and association of functional groups in a perfluorinated Nafion membrane. — Part 2. Colloid & Polymer Sci 262, 305–310 (1984). https://doi.org/10.1007/BF01410469
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DOI: https://doi.org/10.1007/BF01410469