01896nam a2200289Ia 4500003001000000005001700010040000900027090001100036245012100047490005200168520088700220650001601107650001501123650000801138650001801146650002701164700001801191700001901209700001401228700001701242700001701259856015601276942001401432008004101446999001701487952010201504MX-MdCICY20260521091123.0  cCICY  aB-879210aSulfonated poly(ether ether sulfones)Characterization and study of dielectrical properties by impedance spectroscopy0 vJournal of Membrane Science, 175, p.43-52, 20003 aIn this work, three samples of sulfonated polysulfones of different sulfonation degree have been characterized, and the electrical properties of dense membranes based on them have been evaluated. The polymers were characterized spectroscopically, and by their inherent viscosity, and water absorption. Electrical characterization of membranes was carried out on dense membranes in contact with NaCl solutions, by impedance spectroscopy (IS)measurements using equivalent circuits as models. The results showed how the sulfonation clearly affected the membrane electrical characteristics, strongly reducing the membrane resistance, and also changing the type of circuit associated to the membrane, which could be related to the increase of electrolyte taken by the membrane when the sulfonation degree increased. Concentration dependence of the electrical parameters was also studied.14aPOLYSULFONE14aSULFONATED14aNMR14aWATER UP-TAKE14aIMPEDANCE SPECTROSCOPY12aBenavente, J.12aGarcía, J.M.12aRiley, R.12aLozano, A.E.12ade Abajo, J.40uhttps://drive.google.com/file/d/1ImQC1EUf2e7nuTDg2rYfEOeGmWFtf1gu/view?usp=drivesdkzPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx  2LoccREF1250602s9999    xx |||||s2   |||| ||und|d  c19032d19032  00102Loc40708F1aCICYbCICYcREd2025-06-25l0oB-8792r2025-06-25 12:47:27w2025-06-25yREF1