RT Journal Article
T1 Filled poly(2,6-dimethyl-1,4-phenylene oxide) dense membranes by silica and silane modified silica nanoparticles: characterization and application in pervaporation
A1 Khayet Souhaimi, Mohamed
A1 García Villaluenga, Juan Pedro
A1 Valentín, J. L.
A1 López Manchado, Miguel Ángel
A1 Mengual Cabezón, Juan Ignacio
A1 Seoane Rodríguez, Benjamín
AB The effects of silica and silane modified silica fillers on the pervaporation properties of poly (2,6-dimethyl-1,4-phenylene oxide) (PPO) dense membranes have been studied. Crystallinity, thermal and mechanical properties of unfilled and filled PPO membranes with silica and silane modified silica nanoparticles were investigated. The surface energy together with the solubility parameters of the membranes and the nanoparticles were determined. Pervaporation separation of methanol/methyl tert butyl ether (MTBE) mixtures over the entire range of concentration were carried out using both filled and unfilled membranes. The results are discussed in terms of the solubility and the diffusivity of each liquid component in the membranes. Flory-Huggins theory was used to predict the sorption methanol selectivity. Compared to the unfilled PPO membrane, the filled PPO membranes exhibit higher methanol selectivity and lower permeability. For methanol concentration in liquid feed mixture lower than 50 wt%, methanol selectivity of the filled PPO membranes with silane modified silica is better than that of the silica filled and unfilled PPO membranes.
PB Elsevier Ltd.
SN 0032-3861
YR 2005
FD 2005-11-14
LK https://hdl.handle.net/20.500.14352/50994
UL https://hdl.handle.net/20.500.14352/50994
LA eng
NO © 2005 Elsevier Ltd. The authors of this study gratefully acknowledge the financial support of the Ministry of Science and Technology (MCYT, Spain) through its project No PPQ2003-03299. Dr. López Manchado also acknowledges the concession of a Ramón and Cajal contract from the MCYT.
NO Ministry of Science and Technology (MCYT, Spain)
DS Docta Complutense
RD 8 jun 2025