Crosslinked copolyazoles with a zwitterionic structure for organic solvent resistant membranes

Handle URI:
http://hdl.handle.net/10754/563936
Title:
Crosslinked copolyazoles with a zwitterionic structure for organic solvent resistant membranes
Authors:
Chisca, Stefan; Phuoc, Duong ( 0000-0002-0949-3505 ) ; Emwas, Abdul-Hamid M.; Sougrat, Rachid; Nunes, Suzana Pereira ( 0000-0002-3669-138X )
Abstract:
The preparation of crosslinked membranes with a zwitterionic structure based on a facile reaction between a newly synthesized copolyazole with free OH groups and (3-glycidyloxypropyl)trimethoxysilane (GPTMS) is reported. The new OH-functionalized copolyazole is soluble in common organic solvents, such as tetrahydrofuran (THF), dimethylsulfoxide (DMSO), N,N′-dimethylformamide (DMF) and N-methyl-2-pyrrolidone (NMP) and can be easily processed by phase inversion. After crosslinking with GPTMS, the membranes acquire high solvent resistance. We show the membrane performance and the influence of the crosslinking reaction conditions on the thermal stability, surface polarity, pore morphology, and solvent resistance. By using UV-spectroscopy we monitored the solvent resistance of the membranes in four aggressive solvents (THF, DMSO, DMF and NMP) for 30 days. After this time, only minor changes (less than 2%) were detected for membranes subjected to a crosslinking reaction for 6 hours or longer. Our data suggest that the novel crosslinked membranes can be used for industrial applications in wide harsh environments in the presence of organic solvents.
KAUST Department:
Water Desalination and Reuse Research Center (WDRC); Advanced Nanofabrication, Imaging and Characterization Core Lab; Biological and Environmental Sciences and Engineering (BESE) Division; Environmental Science and Engineering Program; Core Labs; Nanostructured Polymeric Membrane Lab
Publisher:
Royal Society of Chemistry (RSC)
Journal:
Polym. Chem.
Issue Date:
2015
DOI:
10.1039/c4py01293c
Type:
Article
ISSN:
17599954
Sponsors:
The authors are grateful to Dr Russell Tayouo and Mr Yihui Xie for useful discussion. This research was supported by the King Abdullah University of Science and Technology (KAUST).
Appears in Collections:
Articles; Environmental Science and Engineering Program; Advanced Nanofabrication, Imaging and Characterization Core Lab; Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorChisca, Stefanen
dc.contributor.authorPhuoc, Duongen
dc.contributor.authorEmwas, Abdul-Hamid M.en
dc.contributor.authorSougrat, Rachiden
dc.contributor.authorNunes, Suzana Pereiraen
dc.date.accessioned2015-08-03T12:20:09Zen
dc.date.available2015-08-03T12:20:09Zen
dc.date.issued2015en
dc.identifier.issn17599954en
dc.identifier.doi10.1039/c4py01293cen
dc.identifier.urihttp://hdl.handle.net/10754/563936en
dc.description.abstractThe preparation of crosslinked membranes with a zwitterionic structure based on a facile reaction between a newly synthesized copolyazole with free OH groups and (3-glycidyloxypropyl)trimethoxysilane (GPTMS) is reported. The new OH-functionalized copolyazole is soluble in common organic solvents, such as tetrahydrofuran (THF), dimethylsulfoxide (DMSO), N,N′-dimethylformamide (DMF) and N-methyl-2-pyrrolidone (NMP) and can be easily processed by phase inversion. After crosslinking with GPTMS, the membranes acquire high solvent resistance. We show the membrane performance and the influence of the crosslinking reaction conditions on the thermal stability, surface polarity, pore morphology, and solvent resistance. By using UV-spectroscopy we monitored the solvent resistance of the membranes in four aggressive solvents (THF, DMSO, DMF and NMP) for 30 days. After this time, only minor changes (less than 2%) were detected for membranes subjected to a crosslinking reaction for 6 hours or longer. Our data suggest that the novel crosslinked membranes can be used for industrial applications in wide harsh environments in the presence of organic solvents.en
dc.description.sponsorshipThe authors are grateful to Dr Russell Tayouo and Mr Yihui Xie for useful discussion. This research was supported by the King Abdullah University of Science and Technology (KAUST).en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.titleCrosslinked copolyazoles with a zwitterionic structure for organic solvent resistant membranesen
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Laben
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.contributor.departmentEnvironmental Science and Engineering Programen
dc.contributor.departmentCore Labsen
dc.contributor.departmentNanostructured Polymeric Membrane Laben
dc.identifier.journalPolym. Chem.en
kaust.authorChisca, Stefanen
kaust.authorEmwas, Abdul-Hamid M.en
kaust.authorSougrat, Rachiden
kaust.authorNunes, Suzana Pereiraen
kaust.authorPhuoc, Duongen
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