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Theoretical studies on the morphological and electrical properties of blended PES/SPEEK nanofiltration membranes using different sulfonation degree of SPEEK

Lau, W. J. and Ismail, A. F. (2009) Theoretical studies on the morphological and electrical properties of blended PES/SPEEK nanofiltration membranes using different sulfonation degree of SPEEK. Journal of Membrane Science, 334 (1-2). 30 -42. ISSN 0376-7388

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Official URL: http://dx.doi.org/10.1016/j.memsci.2009.02.012

Abstract

Sulfonated poly(ether ether ketone)s (SPEEKs) with different sulfonation degrees (DS) were synthesized and characterized using FTIR and NMR for the preparation of blend nanofiltration (NF) membranes. Blends of polyethersulfone and SPEEK at various SPEEK concentrations and various DS were prepared by a simple dry-jet wet spinning technique. The changes in the morphological and electrical properties of the blend membranes were deduced by employing the combination of irreversible thermodynamic model, Steric-Hindrance Pore (SHP) model and Teorell-Meyer-Sievers (TMS) model and the modeling results have been analyzed and discussed in detail. The results showed that the membrane water flux, pore size and surface charge were dependent on the content and DS of SPEEK used. FESEM-EDX results also provided supporting evidence for the trends observed for the morphological and electrical studies.

Item Type:Article
Uncontrolled Keywords:degree of sulfonation, nanofiltration, steric-hindrance pore model, sulfonated poly(ether ether ketone), teorell-meyer-sievers model
Subjects:Q Science > QD Chemistry
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:13150
Deposited By: Liza Porijo
Deposited On:20 Jul 2011 09:41
Last Modified:20 Jul 2011 09:41

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