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dc.contributor.authorMa, Xiaohua
dc.contributor.authorPinnau, Ingo
dc.date.accessioned2018-02-04T10:58:00Z
dc.date.available2018-02-04T10:58:00Z
dc.date.issued2018-01-31
dc.identifier.citationMa X, Pinnau I (2018) Effect of Film Thickness and Physical Aging on “Intrinsic” Gas Permeation Properties of Microporous Ethanoanthracene-Based Polyimides. Macromolecules. Available: http://dx.doi.org/10.1021/acs.macromol.7b02556.
dc.identifier.issn0024-9297
dc.identifier.issn1520-5835
dc.identifier.doi10.1021/acs.macromol.7b02556
dc.identifier.urihttp://hdl.handle.net/10754/627033
dc.description.abstractTwo ethanoanthracene-based dianhydrides, 9,10-dimethylethanoanthracene-2,3,6,7-tetracarboxylic anhydride (EA-DA) and its more flexible dibenzodioxane-containing derivative (EAD-DA), were synthesized from the same starting material, 9,10-dimethyl-ethanoanthracene-2,3,6,7-tetraol, and used for the preparation of bicyclic intrinsically microporous polyimides (PIM-PIs) by one-pot polycondensation reaction with 3,3′-dimethylnaphthidine (DMN). The resulting organosoluble polyimides, EA-DMN and EAD-DMN, were thermally stable up to 300 °C and had good mechanical properties with tensile strength of 55 and 63 MPa and elongation at break of 15 and 30%, respectively. EA-DMN and EAD-DMN polyimides displayed Brunauer–Emmett–Teller (BET) surface areas of 720 and 800 m2 g–1, respectively. Fresh films showed promising gas separation performance with very high gas permeabilities and moderate gas-pair selectivities, which were both strongly dependent on film thickness. The results obtained in this study shed more light on the relative importance of film thickness and physical aging on faster attainment of the “intrinsic” gas transport properties of high free volume PIM-PIs.
dc.description.sponsorshipThis work was supported by funding from King Abdullah University of Science and Technology (KAUST).
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttps://pubs.acs.org/doi/10.1021/acs.macromol.7b02556
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in Macromolecules, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acs.macromol.7b02556.
dc.titleEffect of Film Thickness and Physical Aging on “Intrinsic” Gas Permeation Properties of Microporous Ethanoanthracene-Based Polyimides
dc.typeArticle
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentChemical and Biological Engineering Program
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.identifier.journalMacromolecules
dc.eprint.versionPost-print
kaust.personMa, Xiaohua
kaust.personPinnau, Ingo
dc.date.published-online2018-01-31
dc.date.published-print2018-02-13


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