Thermal analysis and its application in evaluation of fluorinated polyimide membranes for gas separation

Handle URI:
http://hdl.handle.net/10754/599986
Title:
Thermal analysis and its application in evaluation of fluorinated polyimide membranes for gas separation
Authors:
Qiu, Wulin; Chen, Chien-Chiang; Kincer, Matthew R.; Koros, William J.
Abstract:
Seven polyimides based on (4,4′-hexafluoroisopropylidene) diphthalic anhydride, 6FDA, with different chemical structures were synthesized in a single pot two-step procedure by first producing a high molecular weight polyamic acid (PAA), followed by reaction with acetic anhydride to produce polyimide (PI). The resulting polymers were characterized using thermal analysis techniques including TGA, derivative weight analysis, TGA-MS, and DSC. The decarboxylation-induced thermal cross-linking, ester cross-linking through a diol, and ion-exchange reactions of selected polyimide membranes were investigated. Cross-linking of polymer membranes was confirmed by solubility tests and CO 2 permeability measurements. The thermal analysis provides simple and timesaving opportunities to characterize the polymer properties, the ability to optimize polymer cross-linking conditions, and to monitor polymer functionalization to develop high performance polymeric membranes for gas separations. © 2011 Elsevier Ltd. All rights reserved.
Citation:
Qiu W, Chen C-C, Kincer MR, Koros WJ (2011) Thermal analysis and its application in evaluation of fluorinated polyimide membranes for gas separation. Polymer 52: 4073–4082. Available: http://dx.doi.org/10.1016/j.polymer.2011.07.002.
Publisher:
Elsevier BV
Journal:
Polymer
Issue Date:
Aug-2011
DOI:
10.1016/j.polymer.2011.07.002
Type:
Article
ISSN:
0032-3861
Sponsors:
This research was supported by KAUST (King Abdullah University of Science and Technology) and U.S. Department of Energy Grant DE-FG02-04ER15510. We appreciate Hua-Wei Chu in Dr. Cliff Henderson's group at Georgia Tech who helped on TGA-MS measurement.
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Full metadata record

DC FieldValue Language
dc.contributor.authorQiu, Wulinen
dc.contributor.authorChen, Chien-Chiangen
dc.contributor.authorKincer, Matthew R.en
dc.contributor.authorKoros, William J.en
dc.date.accessioned2016-02-28T06:33:50Zen
dc.date.available2016-02-28T06:33:50Zen
dc.date.issued2011-08en
dc.identifier.citationQiu W, Chen C-C, Kincer MR, Koros WJ (2011) Thermal analysis and its application in evaluation of fluorinated polyimide membranes for gas separation. Polymer 52: 4073–4082. Available: http://dx.doi.org/10.1016/j.polymer.2011.07.002.en
dc.identifier.issn0032-3861en
dc.identifier.doi10.1016/j.polymer.2011.07.002en
dc.identifier.urihttp://hdl.handle.net/10754/599986en
dc.description.abstractSeven polyimides based on (4,4′-hexafluoroisopropylidene) diphthalic anhydride, 6FDA, with different chemical structures were synthesized in a single pot two-step procedure by first producing a high molecular weight polyamic acid (PAA), followed by reaction with acetic anhydride to produce polyimide (PI). The resulting polymers were characterized using thermal analysis techniques including TGA, derivative weight analysis, TGA-MS, and DSC. The decarboxylation-induced thermal cross-linking, ester cross-linking through a diol, and ion-exchange reactions of selected polyimide membranes were investigated. Cross-linking of polymer membranes was confirmed by solubility tests and CO 2 permeability measurements. The thermal analysis provides simple and timesaving opportunities to characterize the polymer properties, the ability to optimize polymer cross-linking conditions, and to monitor polymer functionalization to develop high performance polymeric membranes for gas separations. © 2011 Elsevier Ltd. All rights reserved.en
dc.description.sponsorshipThis research was supported by KAUST (King Abdullah University of Science and Technology) and U.S. Department of Energy Grant DE-FG02-04ER15510. We appreciate Hua-Wei Chu in Dr. Cliff Henderson's group at Georgia Tech who helped on TGA-MS measurement.en
dc.publisherElsevier BVen
dc.subjectGas separationen
dc.subjectPolyimide membraneen
dc.subjectThermal analysisen
dc.titleThermal analysis and its application in evaluation of fluorinated polyimide membranes for gas separationen
dc.typeArticleen
dc.identifier.journalPolymeren
dc.contributor.institutionGeorgia Institute of Technology, Atlanta, United Statesen
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