Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0376-7388(02)00286-7
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dc.titlePreparation of asymmetric polyetherimide hollow fibre membrane with high gas selectivities
dc.contributor.authorWang, D.
dc.contributor.authorLi, K.
dc.contributor.authorTeo, W.K.
dc.date.accessioned2014-10-09T09:59:29Z
dc.date.available2014-10-09T09:59:29Z
dc.date.issued2002-10-01
dc.identifier.citationWang, D., Li, K., Teo, W.K. (2002-10-01). Preparation of asymmetric polyetherimide hollow fibre membrane with high gas selectivities. Journal of Membrane Science 208 (1-2) : 419-426. ScholarBank@NUS Repository. https://doi.org/10.1016/S0376-7388(02)00286-7
dc.identifier.issn03767388
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/92277
dc.description.abstractPreparation of asymmetric polyetherimide (PEI) hollow fibre membranes with high gas selectivity was studied by introducing volatile organic compounds as additives into the dope solutions. The additives used include methanol, acetone, a mixture of methanol/acetone and tetrahydrofuran (THF). N-methyl-2-pyrrolidone (NMP) and dimethylacetamide (DMAc) were used as solvents. The PEI hollow fibre membranes were spun using tap water as the external coagulant and 50wt.% ethanol aqueous solution as the internal coagulant. The effect of air gap, polymer concentration, solvent and additives on membrane separation properties was investigated. It has been shown that parameters, such as the solvent, additive and air gap affect the dense skin layer formation. Asymmetric PEI hollow fibre membranes with high He/N2 selectivity can be prepared using volatile non-solvent additives and NMP as the solvent at a suitable length of the air gap. The PEI hollow fibre membrane prepared using THF as the additive shows the poor selectivity.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/S0376-7388(02)00286-7
dc.sourceScopus
dc.subjectGas separation
dc.subjectHollow fibre
dc.subjectPolyetherimide
dc.subjectPreparation
dc.typeArticle
dc.contributor.departmentCHEMICAL & ENVIRONMENTAL ENGINEERING
dc.description.doi10.1016/S0376-7388(02)00286-7
dc.description.sourcetitleJournal of Membrane Science
dc.description.volume208
dc.description.issue1-2
dc.description.page419-426
dc.description.codenJMESD
dc.identifier.isiut000178226500037
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