Collect. Czech. Chem. Commun. 1987, 52, 329-334

Perfluorosulphonated polymers as new materials for IR spectroscopy

Alexandr Jegorova, Miroslav Eberta, Jan Weberb and Pavel Jandab

a Department of Inorganic Chemistry, Charles University, 128 40 Prague 2
b The J. Heyrovský Institute of Physical Chemistry and Electrochemistry, Czechoslovak Academy of Sciences, U továren 254, 102 00 Prague 10


Thin films of perfluorosulphonated polymer were obtained by dissolving a Nafion 117 membrane in N,N-dimethylacetamide or hexamethylphosphoric triamide and subsequent evaporation of the solution. These films can be used as a medium for IR spectroscopy in the range 4 000-1 300 cm-1, suitable for retention and identification of cations. Spectra of cations in polymer cationic forms (NH4+, MenNH3-n+, EtnNH3-n+) and of some allylammonium cations were studied.