Sorption and conducting properties of perfluorinated MF-4SC membranes in aqueous solutions containing phenylammonium ions |
| |
| Authors: | A. A. -R. Sycheva I. V. Falina N. P. Berezina |
| |
| Affiliation: | (1) Kuban State University, ul. Stavropolskaya 149, Krasnodar, 350040, Russia |
| |
| Abstract: | A comparative study of the sorption effect is performed for nitrogen-containing ammonium, phenylammonium (PhA+), and tetrabutylammonium (TBA+) cations on conducting and hydrophilic properties of protonic form of perfluorinated sulfocationite MF-4SC membrane. Conductometric method was used to study thermodynamic equilibria in the systems of perfluorinated MF-4SC membrane—aniline in the acid solutions of variable composition (PhA+/HCl and PhA+/H2SO4). Concentration constants of ion-exchange equilibrium are calculated for a MF-4SC membrane on the basis of these data. These constants in the solutions of aniline with HCl and H2SO4 are 10.3 and 27.0, accordingly. The choice of sulfuric acid as background electrolyte for matrix polyaniline synthesis is substantiated. |
| |
| Keywords: | perfluorinated sulfocationite membrane aniline thermodynamic equilibrium specific selectivity ac conductivity hydration number constant of ion-exchange equilibrium |
| 本文献已被 SpringerLink 等数据库收录！ |
