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dc.contributor.authorAbdulhamid, Mahmoud A.
dc.contributor.authorMa, Xiaohua
dc.contributor.authorMiao, Xiaohe
dc.contributor.authorPinnau, Ingo
dc.date.accessioned2017-10-17T11:47:40Z
dc.date.available2017-10-17T11:47:40Z
dc.date.issued2017-10-12
dc.identifier.citationAbdulhamid MA, Ma X, Miao X, Pinnau I (2017) Synthesis and characterization of a microporous 6FDA-polyimide made from a novel carbocyclic pseudo Tröger’s base diamine: Effect of bicyclic bridge on gas transport properties. Polymer 130: 182–190. Available: http://dx.doi.org/10.1016/j.polymer.2017.10.017.
dc.identifier.issn0032-3861
dc.identifier.doi10.1016/j.polymer.2017.10.017
dc.identifier.urihttp://hdl.handle.net/10754/625896
dc.description.abstractA newly designed carbocyclic pseudo Tröger's base diamine (CTB) monomer, 2,8-dimethyl-3,9-diamino-5,6,11,12-tetrahydro-5,11-methanodibenzo[a,e][8]annulene (CTBDA) and its isomeric analogue 2,8-dimethyl-(1,7)(4,10)(3,9)-diamino-5,6,11,12-tetrahydro-5,11-methanodibenzo[a,e][8]annulene (iCTBDA), were designed for the synthesis of microporous 6FDA-based polyimides (6FDA-CTBDA and 6FDA-iCTBDA). Both polyimides were soluble, exhibited excellent thermal stability of ∼490 °C, and had high surface areas of 587 m2 g−1 (6FDA-CTBDA) and 562 m2 g−1 (6FDA-iCTBDA). A 6FDA-based polyimide derived from 4,10-dimethyl-3,9-diamino-6H,12H-5,11-methanodibenzo[b,f][1,5]-diazocine (6FDA-TBDA) was made for comparison to investigate the effects of the basic tertiary nitrogen functionality in the Tröger's base diamine on the polymer properties relative to the carbocyclic 6FDA-CTBDA analogue. 6FDA-TBDA displayed lower gas permeabilities but moderately higher gas-pair permselectivities than 6FDA-CTBDA. The enhanced permselectivity of 6FDA-TBDA resulted exclusively from higher diffusion-based selectivity. Direct gas sorption measurements demonstrated that the basicity in the Tröger's base bridge moiety enhanced the sorption capacity of CO2 only slightly and had no effect on the CO2/CH4 solubility selectivity in 6FDA-TBDA vs. 6FDA-CTBDA.
dc.description.sponsorshipThis work was supported by funding from King Abdullah University of Science and Technology (KAUST).
dc.publisherElsevier BV
dc.relation.urlhttp://www.sciencedirect.com/science/article/pii/S0032386117309734
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Polymer. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Polymer, 9 October 2017. DOI: 10.1016/j.polymer.2017.10.017. © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectPolyimides
dc.subjectCarbocyclic pseudo Tröger's base diamine
dc.subjectGas permeation
dc.titleSynthesis and characterization of a microporous 6FDA-polyimide made from a novel carbocyclic pseudo Tröger's base diamine: Effect of bicyclic bridge on gas transport properties
dc.typeArticle
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentChemical Engineering Program
dc.contributor.departmentImaging and Characterization Core Lab
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalPolymer
dc.eprint.versionPost-print
kaust.personAbdulhamid, Mahmoud A.
kaust.personMa, Xiaohua
kaust.personMiao, Xiaohe
kaust.personPinnau, Ingo
dc.relation.issupplementedbyDOI:10.5517/ccdc.csd.cc1nvs6h
refterms.dateFOA2019-10-09T00:00:00Z
display.relations<b>Is Supplemented By:</b><br/> <ul><li><i>[Dataset]</i> <br/> Abdulhamid, M. A., Ma, X., Miao, X., &amp; Pinnau, I. (2017). <i>CCDC 1545077: Experimental Crystal Structure Determination</i> [Data set]. Cambridge Crystallographic Data Centre. https://doi.org/10.5517/CCDC.CSD.CC1NVS6H. DOI: <a href="https://doi.org/10.5517/ccdc.csd.cc1nvs6h" >10.5517/ccdc.csd.cc1nvs6h</a> Handle: <a href="http://hdl.handle.net/10754/663881" >10754/663881</a></a></li></ul>
dc.date.published-online2017-10-12
dc.date.published-print2017-11


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