Universiti Teknologi Malaysia Institutional Repository

Application of poly(ethylene terephthalate)-graft-polystyrene membranes in pervaporation

Khayet, M. and Nasef, M. M. and Mengual, J. I. (2006) Application of poly(ethylene terephthalate)-graft-polystyrene membranes in pervaporation. Desalination, 193 (Issues 1-3). pp. 109-118. ISSN 0011-9164

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1016/j.desal.2005.07.048

Abstract

Gamma radiation-induced grafting of styrene (ST) onto poly(ethylene terephthalate) (PET) films was used to prepare poly(ethylene terephtalate)/polystyrene (PET-g-PST) membranes having various degrees of grafting. Various characterization techniques were used to study both surface and bulk properties of the un-grafted PET and the grafted PET-g-PST membranes. The pervaporation performance of the membranes was investigated using a 50:50% v/v methanol/toluene mixture at 25°C. The effects of the degree of grafting on the sorption behaviour, the pervaporation flux and the permeation selectivity of the membranes were studied. The pervaporation performance of the membranes has been explained using the solubility parameter approach. All the investigated membranes were found to be toluene selective. However, the grafted PET-g-PST membranes exhibit better pervaporation performance than the un-grafted PET membrane as indicated by their high toluene selectivity. Among all PET-g-PST membranes, 35% grafted membrane possesses the most appealing pervaporation properties.

Item Type:Article
Additional Information:Presented at the International Congress on Membranes and Membrane Processes (ICOM), Seoul, Korea, 21–26 August 2005
Uncontrolled Keywords:poly(ethylene terephthalate), radiation-induced grafting, pervaporation, toluene/methanol mixture
Subjects:Q Science > QC Physics
Divisions:Science
ID Code:6844
Deposited By: Ms Zalinda Shuratman
Deposited On:17 Nov 2008 08:11
Last Modified:17 Nov 2008 08:11

Repository Staff Only: item control page