Fabrication and Characterization of Aging Resistant Carbon Molecular Sieve Membranes for C₃ Separation Using High Molecular Weight Crosslinkable Polyimide, 6FDA-DABA

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dc.contributor.authorKarunaweera, Chamaal
dc.contributor.authorMusselman, Inga H.
dc.contributor.authorBalkus, Kenneth J.
dc.contributor.authorFerraris, John P.
dc.contributor.utdAuthorKarunaweera, C.
dc.contributor.utdAuthorMusselman, Inga H.
dc.contributor.utdAuthorBalkus, Kenneth J.
dc.contributor.utdAuthorFerraris, John P.
dc.date.accessioned2019-11-08T21:52:34Z
dc.date.available2019-11-08T21:52:34Z
dc.date.created2019-03-28
dc.descriptionDue to copyright restrictions full text access from Treasures at UT Dallas is restricted to current UTD affiliates (use the provided Link to Article).
dc.description.abstractAlthough propylene/propane separation remains a challenge for industrial processes, carbon molecular sieve membranes (CMSMs) have the potential to replace traditional separation methods. A high molecular weight crosslinkable polyimide was utilized to fabricate CMSMs, which showed pure gas permeabilities in excess of 400 barrers with propylene/propane selectivities as high as 25. Mixed gas (C₃H₈:C₃H₆ 50:50) measurements yielded a propylene permeability of 257 barrers and a selectivity of 20. CMSMs from thermally precrosslinked polymer precursors demonstrated a 98% propylene permeability retention after aging for 20 days under vacuum. Active gas flow conditions resulted in slightly lower permeability retention (92.5%) after 15 days of testing. ©2019 Elsevier B.V.
dc.description.departmentSchool of Natural Sciences and Mathematics
dc.description.sponsorshipNSF (CBET-1403950)
dc.identifier.bibliographicCitationKarunaweera, C., I. H. Musselman, K. J., Jr. Balkus, and J. P. Ferraris. 2019. "Fabrication and characterization of aging resistant carbon molecular sieve membranes for C 3 separation using high molecular weight crosslinkable polyimide, 6FDA-DABA." Journal of Membrane Science 581: 430-438, doi: 10.1016/j.memsci.2019.03.065
dc.identifier.issn0376-7388
dc.identifier.urihttps://hdl.handle.net/10735.1/7098
dc.identifier.volume581
dc.publisherElsevier B.V.
dc.relation.urihttps://dx.doi.org/10.1016/j.memsci.2019.03.065
dc.rights©2019 Elsevier B.V. All Rights Reserved.
dc.source.journalJournal of Membrane Science
dc.subject6FDA-DABA
dc.subjectAging
dc.subjectCarbon molecular sieve membranes
dc.subjectPropylene/propane separation
dc.subjectThermal crosslinking
dc.subjectHexafluoroisopropylidene diphthalic anhydride
dc.subjectDiaminobenzoic acid
dc.subjectPyromellitic dianhydride
dc.subjectBiphenyltetracarboxylic dianhydride
dc.subjectDimethylacetamide
dc.subjectMethyl-2-pyrrolidone
dc.subjectGel permeation chromatography
dc.subjectTetrahydrofuran
dc.subjectThermogravimetry
dc.subjectScanning electron microscopy
dc.titleFabrication and Characterization of Aging Resistant Carbon Molecular Sieve Membranes for C₃ Separation Using High Molecular Weight Crosslinkable Polyimide, 6FDA-DABA

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Ferraris, John P.
Balkus, Kenneth J.
Musselman, Inga H.