RT Journal Article
T1 Comparative study of liquid uptake and permeation characteristics of sulfonated cation-exchange membranes in water and methanol
A1 Barragán García, Vicenta María
A1 García Villaluenga, Juan Pedro
A1 Izquierdo Gil, María Amparo
A1 Godino Gómez, María Paz
A1 Seoane Rodríguez, Benjamín
A1 Ruiz Bauzá, Carlos
AB Liquid permeation and uptake measurements of pure water and methanol were carried out using three commercial cation-exchange membranes: Nafion-117 (perfluorinated polyethylene with pendant ether-linked side chains terminated with sulfonated groups), MK-40 (microparticles of polystyrene-divinylbenzene with sulfonic groups randomly dispersed in a polyethylene matrix) and CR61-CZL-412 (crosslinked sulfonated copolymer of styrene-divinylbenzene). Methanol uptake by the Nafion-117 membrane was higher than that of water, in contrast, for MK-40 and CR61-CZL-412 membranes the opposite behavior is observed. Differences in the water and methanol liquid uptakes by the membranes were discussed in terms of the chemical interaction between the liquids and the polymers, and also on the size of the liquid molecules. On the other hand, the methanol permeation flow values through the membranes were higher than those of water for all the studied membranes.
PB Elsevier Science BV
SN 0376-7388
YR 2008
FD 2008-10-15
LK https://hdl.handle.net/20.500.14352/50545
UL https://hdl.handle.net/20.500.14352/50545
LA eng
NO © 2008 Elsevier B.V. The authors of this study gratefully acknowledge Prof. C. Larchet and Prof. V. Nikonenko for donating MK40 membrane samples. Financial support from Comunidad de Madrid and UniversidadComplutense de Madrid under Project CCG06-UCM/MAT-1037 isalso gratefully acknowledged.
NO Comunidad de Madrid
NO Universidad Complutense de Madrid
DS Docta Complutense
RD 8 abr 2025