Blend Membranes of Sodium Alginate/Poly(Styrene Sulfonic Acid) for Isopropanol Dehydration

Authors: Adoor, Susheelkumar G.¹; Manjeshwar, Lata S.¹; Aminabhavi, Tejraj M.²

Source: Designed Monomers & Polymers, Volume 11, Number 2, 2008 , pp. 147-157(11)

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Abstract:

This paper addresses the preparation of blend membranes of sodium alginate (NaAlg) with 5 and 10 wt% of poly(styrene sulfonic acid) (PSSA) that are cross-linked with glutaraldehyde to investigate pervaporation (PV) dehydration of isopropanol at different temperatures and membrane thicknesses. NaAlg with 10 wt% PSSA membrane offered higher values of flux and selectivity than pristine NaAlg membrane. Activation parameters were computed to explain the transport results. Membrane selectivity increased, but flux decreased with increasing membrane thickness; however, a reverse trend was observed at increasing temperature.

Keywords: PERVAPORATION; SODIUM ALGINATE; POLY(STYRENE SULFONIC ACID); BLEND MEMBRANES

Document Type: Regular paper

DOI: http://dx.doi.org/10.1163/156855508X298053

Affiliations: 1: Membrane Separations Division, Center of Excellence in Polymer Science, Karnatak University, Dharwad 580 003, India 2: Membrane Separations Division, Center of Excellence in Polymer Science, Karnatak University, Dharwad 580 003, India;, Email: aminabhavi@yahoo.com

Publication date: 2008-03-01