Low fouling polysulfone ultrafiltration membrane via click chemistry

Handle URI:
http://hdl.handle.net/10754/565991
Title:
Low fouling polysulfone ultrafiltration membrane via click chemistry
Authors:
Xie, Yihui ( 0000-0003-0159-9011 ) ; Tayouo Djinsu, Russell; Nunes, Suzana Pereira ( 0000-0002-3669-138X )
Abstract:
Hydrophilic surfaces are known to be less prone to fouling. Ultrafiltration membranes are frequently prepared from rather hydrophobic polymers like polysulfone (PSU). Strategies to keep the good pore forming characteristics of PSU, but with improved hydrophilicity are proposed here. PSU functionalized with 1,2,3-triazole ring substituents containing OH groups was successfully synthesized through click chemistry reaction. The structures of the polymers were confirmed using NMR spectroscopy and Fourier transform infrared spectroscopy (FTIR). High thermal stability (>280°C) was observed by thermal gravimetric analysis. Elemental analysis showed the presence of nitrogen containing triazole group with different degrees of functionalization (23%, 49%, 56%, and 94%). The glass transition temperature shifted with the introduction of triazole pendant groups from 190°C (unmodified) to 171°C. Ultrafiltration membranes were prepared via phase inversion by immersion in different coagulation baths (NMP/water mixtures with volume ratios from 0/100 to 40/60). The morphologies of these membranes were studied by field emission scanning electron microscopy (FESEM). The optimized PSU bearing triazole functions membranes exhibited water permeability up to 187 L m-2 h-1 bar-1, which is 23 times higher than those prepared under the same conditions but with unmodified polysulfone (PSU; 8 L m-2 h-1 bar-1). Results of bovine serum albumin protein rejection test indicated that susceptibility to fouling decreased with the modification, due to the increased hydrophilicity, while keeping high protein rejection ratio (>99%).
KAUST Department:
Water Desalination and Reuse Research Center (WDRC)
Publisher:
Wiley-Blackwell
Journal:
Journal of Applied Polymer Science
Issue Date:
13-Oct-2014
DOI:
10.1002/app.41549
Type:
Article
ISSN:
00218995
Sponsors:
The work was partially funded by the KAUST Competitive Research Grant program (CRG2).
Appears in Collections:
Articles; Water Desalination and Reuse Research Center (WDRC)

Full metadata record

DC FieldValue Language
dc.contributor.authorXie, Yihuien
dc.contributor.authorTayouo Djinsu, Russellen
dc.contributor.authorNunes, Suzana Pereiraen
dc.date.accessioned2015-08-12T08:58:26Zen
dc.date.available2015-08-12T08:58:26Zen
dc.date.issued2014-10-13en
dc.identifier.issn00218995en
dc.identifier.doi10.1002/app.41549en
dc.identifier.urihttp://hdl.handle.net/10754/565991en
dc.description.abstractHydrophilic surfaces are known to be less prone to fouling. Ultrafiltration membranes are frequently prepared from rather hydrophobic polymers like polysulfone (PSU). Strategies to keep the good pore forming characteristics of PSU, but with improved hydrophilicity are proposed here. PSU functionalized with 1,2,3-triazole ring substituents containing OH groups was successfully synthesized through click chemistry reaction. The structures of the polymers were confirmed using NMR spectroscopy and Fourier transform infrared spectroscopy (FTIR). High thermal stability (>280°C) was observed by thermal gravimetric analysis. Elemental analysis showed the presence of nitrogen containing triazole group with different degrees of functionalization (23%, 49%, 56%, and 94%). The glass transition temperature shifted with the introduction of triazole pendant groups from 190°C (unmodified) to 171°C. Ultrafiltration membranes were prepared via phase inversion by immersion in different coagulation baths (NMP/water mixtures with volume ratios from 0/100 to 40/60). The morphologies of these membranes were studied by field emission scanning electron microscopy (FESEM). The optimized PSU bearing triazole functions membranes exhibited water permeability up to 187 L m-2 h-1 bar-1, which is 23 times higher than those prepared under the same conditions but with unmodified polysulfone (PSU; 8 L m-2 h-1 bar-1). Results of bovine serum albumin protein rejection test indicated that susceptibility to fouling decreased with the modification, due to the increased hydrophilicity, while keeping high protein rejection ratio (>99%).en
dc.description.sponsorshipThe work was partially funded by the KAUST Competitive Research Grant program (CRG2).en
dc.publisherWiley-Blackwellen
dc.subjectFunctionalization of polymersen
dc.subjectMembranesen
dc.subjectSeparation techniquesen
dc.subjectSynthesis and processingen
dc.titleLow fouling polysulfone ultrafiltration membrane via click chemistryen
dc.typeArticleen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.identifier.journalJournal of Applied Polymer Scienceen
kaust.authorXie, Yihuien
kaust.authorNunes, Suzana Pereiraen
kaust.authorTayouo Djinsu, Russellen
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