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dc.contributor.authorOgieglo, Wojciech
dc.contributor.authorFurchner, Andreas
dc.contributor.authorGhanem, Bader
dc.contributor.authorMa, Xiaohua
dc.contributor.authorPinnau, Ingo
dc.contributor.authorWessling, Matthias
dc.date.accessioned2017-10-19T07:10:41Z
dc.date.available2017-10-19T07:10:41Z
dc.date.issued2017-10-24
dc.identifier.citationOgieglo W, Furchner A, Ghanem BS, Ma X-H, Pinnau I, et al. (2017) Mixed-Penetrant Sorption in Ultra-Thin Films of Polymer of Intrinsic Microporosity PIM-1. The Journal of Physical Chemistry B. Available: http://dx.doi.org/10.1021/acs.jpcb.7b10061.
dc.identifier.issn1520-6106
dc.identifier.issn1520-5207
dc.identifier.pmid29023118
dc.identifier.doi10.1021/acs.jpcb.7b10061
dc.identifier.urihttp://hdl.handle.net/10754/625906
dc.description.abstractMixed penetrant sorption into ultra-thin films of a super-glassy polymer of intrinsic microporosity (PIM-1) was studied for the first time by using interference-enhanced in-situ spectroscopic ellipsometry. PIM-1 swelling and the concurrent changes in its refractive index were determined in ultra-thin (12 - 14 nm) films exposed to pure and mixed penetrants. The penetrants included water, n-hexane and ethanol and were chosen based on their significantly different penetrant-penetrant and penetrant-polymer affinities. This allowed studying microporous polymer responses at diverse ternary compositions and revealed effects such as competition for the sorption sites (for water / n-hexane or ethanol / n-hexane) or enhancement in sorption of typically weakly sorbing water in the presence of more highly sorbing ethanol. The results reveal details of the mutual sorption effects which often complicate comprehension of glassy polymers' behavior in applications such as high-performance membranes, adsorbents or catalysts. Mixed-penetrant effects are typically very challenging to study directly and their understanding is necessary owing to a broadly recognized inadequacy of simple extrapolations from measurements in pure component environment.
dc.description.sponsorshipThis publication is based upon work supported by the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under Award No. SEED Fund OSR-2015-SEED-2445-01.
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acs.jpcb.7b10061
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in The Journal of Physical Chemistry B, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/acs.jpcb.7b10061.
dc.titleMixed-Penetrant Sorption in Ultra-Thin Films of Polymer of Intrinsic Microporosity PIM-1
dc.typeArticle
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentChemical Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalThe Journal of Physical Chemistry B
dc.eprint.versionPost-print
dc.contributor.institutionDWI - Leibniz Institute for Interactive Materials, Forckenbeckstr. 50, 52074 Aachen, Germany
dc.contributor.institutionLeibniz-Institute fur Analytische Wissenschaften - ISAS - e.V., Schwarzschildstrasse 8, 12489 Berlin, Germany
kaust.personGhanem, Bader
kaust.personMa, Xiaohua
kaust.personPinnau, Ingo
kaust.grant.numberOSR-2015-SEED-2445-01
refterms.dateFOA2018-10-12T00:00:00Z
dc.date.published-online2017-10-24
dc.date.published-print2017-11-02


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