Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.seppur.2007.12.002
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dc.titleExploring Torlon/P84 co-polyamide-imide blended hollow fibers and their chemical cross-linking modifications for pervaporation dehydration of isopropanol
dc.contributor.authorTeoh, M.M.
dc.contributor.authorChung, T.-S.
dc.contributor.authorWang, K.Y.
dc.contributor.authorGuiver, M.D.
dc.date.accessioned2014-10-09T06:47:27Z
dc.date.available2014-10-09T06:47:27Z
dc.date.issued2008-07-15
dc.identifier.citationTeoh, M.M., Chung, T.-S., Wang, K.Y., Guiver, M.D. (2008-07-15). Exploring Torlon/P84 co-polyamide-imide blended hollow fibers and their chemical cross-linking modifications for pervaporation dehydration of isopropanol. Separation and Purification Technology 61 (3) : 404-413. ScholarBank@NUS Repository. https://doi.org/10.1016/j.seppur.2007.12.002
dc.identifier.issn13835866
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/88885
dc.description.abstractA research study has been conducted to fabricate and chemically modify Torlon® 4000T and Torlon/P84 co-polyamide-imide blended hollow fibers as new materials for the dehydration of isopropanol (IPA). It has been found that Torlon/P84 blends are miscible, as confirmed through the single glass transition temperatures (Tgs) detected by differential scanning calorimetry (DSC). Both pure and blended hollow fibers fabricated from the dry-jet wet-spinning process do not show sufficient resistance to suppress water and IPA induced swelling, whereas cross-linked pure Torlon hollow fibers show only marginal improvement. However, the Torlon/P84 blended fibers display enhanced separation performance after chemical cross-linking modification with the aid of p-xylenediamine. It is believed that the p-xylenediamine induced cross-linking reactions result in greater chain packing and the reduction of free volume. The highest separation factor obtained was 185 ± 8 for the 85/15 wt.% IPA/H2O feed solution and the total permeation flux obtained was 1000 ± 45 g/m2 h. © 2007 Elsevier B.V. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.seppur.2007.12.002
dc.sourceScopus
dc.subjectCross-linking
dc.subjectDehydration of isopropanol
dc.subjectHollow fiber
dc.subjectTorlon
dc.subjectTorlon/P84 co-polyamide-imide blends
dc.typeArticle
dc.contributor.departmentCHEMICAL & BIOMOLECULAR ENGINEERING
dc.description.doi10.1016/j.seppur.2007.12.002
dc.description.sourcetitleSeparation and Purification Technology
dc.description.volume61
dc.description.issue3
dc.description.page404-413
dc.description.codenSPUTF
dc.identifier.isiut000257355700022
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