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Characterization of polyethersulfone/Matrimid® 5218 miscible blend mixed matrix membranes for O2/N2 gas separation

Ismail, Ahmad Fauzi and Rahim, R. A. and Rahman, W. A. W. A. (2008) Characterization of polyethersulfone/Matrimid® 5218 miscible blend mixed matrix membranes for O2/N2 gas separation. Separation and Purification Technology, 63 . pp. 200-206. ISSN 1383-5866

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Official URL: http://dx.doi.org/10.1016/j.seppur.2008.05.007

Abstract

This study investigates the gas separation performance of a mixed matrix membranes flat sheet based on polyethersulfone/polyimide (PES/PI) miscible blend incorporated with zeolite particles. Zeolite 4Awas selected and its loadingwere varied between 10 and 50 wt%. Initial attempt of annealing at 150 and 240 â—¦C resulted in ideal separation factors far lower than the intrinsic values of the host polymeric membranes. The ideal separation factor was improved by a factor of 5 by increasing the annealing temperature up to 280 â—¦C, which is above the glass transition temperature (Tg) of the polymer blend. Only one Tg was observed in DSC analysis, indicating the high miscibility of PES/PI polymer blend and zeolite particles. The ideal separation factors of O2/N2 were higher compared to the value reported for the PES/PI blend membrane and the value increased with increasing zeolite loading. It is concluded that addition of zeolite particles into the matrix of PES/PI polymer blend has significant effect on the membrane structure and properties

Item Type:Article
Uncontrolled Keywords:Mixed matrix membrane, polymer blending, zeolite loading, gas separation
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:7200
Deposited By: Nur Amal Zakiah Shamsudin
Deposited On:01 Jan 2009 07:49
Last Modified:01 Jan 2009 07:49

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