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dc.contributor.authorSutisna, Burhannudin
dc.contributor.authorPolymeropoulos, George
dc.contributor.authorMusteata, Valentina-Elena
dc.contributor.authorSougrat, Rachid
dc.contributor.authorSmilgies, Detlef-M.
dc.contributor.authorPeinemann, Klaus-Viktor
dc.contributor.authorHadjichristidis, Nikos
dc.contributor.authorNunes, Suzana Pereira
dc.date.accessioned2017-10-09T05:50:34Z
dc.date.available2017-10-09T05:50:34Z
dc.date.issued2017-10-04
dc.identifier.citationSutisna B, Polymeropoulos G, Musteata V, Sougrat R, Smilgies D-M, et al. (2017) Functionalized Nanochannels from Self-Assembled and Photomodified Poly(Styrene-b -Butadiene-b -Styrene). Small: 1701885. Available: http://dx.doi.org/10.1002/smll.201701885.
dc.identifier.issn1613-6810
dc.identifier.pmid28977736
dc.identifier.doi10.1002/smll.201701885
dc.identifier.urihttp://hdl.handle.net/10754/625830
dc.description.abstractMembranes are prepared by self-assembly and casting of 5 and 13 wt% poly(styrene-b-butadiene-b-styrene) (PS-b-PB-b-PS) copolymers solutions in different solvents, followed by immersion in water or ethanol. By controlling the solution-casting gap, porous films of 50 and 1 µm thickness are obtained. A gradient of increasing pore size is generated as the distance from the surface increased. An ordered porous surface layer with continuous nanochannels can be observed. Its formation is investigated, by using time-resolved grazing incident small angle X-ray scattering, electron microscopy, and rheology, suggesting a strong effect of the air-solution interface on the morphology formation. The thin PS-b-PB-b-PS ordered films are modified, by promoting the photolytic addition of thioglycolic acid to the polybutadiene groups, adding chemical functionality and specific transport characteristics on the preformed nanochannels, without sacrificing the membrane morphology. Photomodification increases fivefold the water permeance to around 2 L m(-2) h(-1) bar(-1) , compared to that of the unmodified one. A rejection of 74% is measured for methyl orange in water. The membranes fabrication with tailored nanochannels and chemical functionalities can be demonstrated using relatively lower cost block copolymers. Casting on porous polyacrylonitrile supports makes the membranes even more scalable and competitive in large scale.
dc.description.sponsorshipThis work was sponsored by the King Abdullah University of Science and Technology (KAUST) Grant 1671 – CRG2. The authors thank Christopher Waldron, Nimer Wehbe, and Mohamed Nejib Hedhili for the assistance on the XPS measurements, as well as Alessandro Genovese for the EFTEM and STEM–EELS analysis, and Long Chen for the assistance in the AFM measurements. The authors acknowledge Cornell High Energy Synchrotron Source (CHESS) in USA and Laboratório Nacional de Luz Síncrotron (LNLS) in Brazil for the access to the GISAXS and SAXS synchrotron facilities. The authors thank Florian Meneau and Tiago Araujo Kakile at LNLS for their support at the SAXS1 beamline. CHESS was supported by the National Science Foundation and the National Institutes of Health/National Institute of General Medical Sciences under NSF award DMR-1332208.
dc.publisherWiley
dc.relation.urlhttp://onlinelibrary.wiley.com/doi/10.1002/smll.201701885/abstract
dc.rightsThis is the peer reviewed version of the following article: Functionalized Nanochannels from Self-Assembled and Photomodified Poly(Styrene-b-Butadiene-b-Styrene), which has been published in final form at http://doi.org/10.1002/smll.201701885. This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
dc.titleFunctionalized Nanochannels from Self-Assembled and Photomodified Poly(Styrene-b -Butadiene-b -Styrene)
dc.typeArticle
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentChemical Engineering Program
dc.contributor.departmentChemical Science Program
dc.contributor.departmentElectron Microscopy
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentImaging and Characterization Core Lab
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.contributor.departmentNanofabrication Core Lab
dc.contributor.departmentNanostructured Polymeric Membrane Lab
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentPolymer Synthesis Laboratory
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.identifier.journalSmall
dc.eprint.versionPost-print
dc.contributor.institutionCornell High Energy Synchrotron Source (CHESS); Wilson Laboratory; Cornell University; Ithaca NY 14853 USA
kaust.personSutisna, Burhannudin
kaust.personPolymeropoulos, Georgios
kaust.personMusteata, Valentina-Elena
kaust.personSougrat, Rachid
kaust.personPeinemann, Klaus-Viktor
kaust.personHadjichristidis, Nikos
kaust.personNunes, Suzana Pereira
kaust.grant.number1671 – CRG2
refterms.dateFOA2018-10-04T00:00:00Z
dc.date.published-online2017-10-04
dc.date.published-print2018-05


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