Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.polymer.2008.01.052
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dc.titleHydrogen separation and purification in membranes of miscible polymer blends with interpenetration networks
dc.contributor.authorHosseini, S.S.
dc.contributor.authorTeoh, M.M.
dc.contributor.authorChung, T.S.
dc.date.accessioned2014-10-09T06:50:26Z
dc.date.available2014-10-09T06:50:26Z
dc.date.issued2008-03-17
dc.identifier.citationHosseini, S.S., Teoh, M.M., Chung, T.S. (2008-03-17). Hydrogen separation and purification in membranes of miscible polymer blends with interpenetration networks. Polymer 49 (6) : 1594-1603. ScholarBank@NUS Repository. https://doi.org/10.1016/j.polymer.2008.01.052
dc.identifier.issn00323861
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/89144
dc.description.abstractThis study demonstrates the successful implications of blending technique cum chemical modification for the fabrication of high performance polymeric membranes for gas separation applications. The effect of variation in composition on miscibility and microstructure, gas permeability and selectivity of blend membranes is investigated. It is found that augmentation in PBI composition results in enhancement in gas separation performance of membranes which is attributed mainly to the effect of diffusivity selectivity. Analysis of the microstructure of membranes confirms the variations in chain packing density, d-spacing and segmental mobility of polymer chains as a result of blending. Separation performance of membranes is further ameliorated through chemical modification of blend constituents. Modification of PBI phase with p-xylene dichloride brings about slight improvements in selectivity performance, especially for H2/CO2 and H2/N2. In contrast, the selectivity of membranes is improved significantly after cross-linking of Matrimid phase with p-xylene diamine. The results indicate that higher tendency of Matrimid toward cross-linking reaction contributes more in controlling the transport properties of membranes through diffusion coefficient by increase in chain packing density and diminishing the excess free volumes. Results obtained in this study reveal the promising features of developed membranes for gas separation applications with great potential for hydrogen separation and purification on industrial scale. © 2008 Elsevier Ltd. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.polymer.2008.01.052
dc.sourceScopus
dc.subjectHydrogen separation
dc.subjectPolybenzimidazole
dc.subjectPolymer blending
dc.typeArticle
dc.contributor.departmentCHEMICAL & BIOMOLECULAR ENGINEERING
dc.description.doi10.1016/j.polymer.2008.01.052
dc.description.sourcetitlePolymer
dc.description.volume49
dc.description.issue6
dc.description.page1594-1603
dc.description.codenPOLMA
dc.identifier.isiut000254818900022
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