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dc.contributor.authorZhang, Lianbin
dc.contributor.authorZhang, Zhonghai
dc.contributor.authorWang, Peng
dc.date.accessioned2014-11-11T14:32:53Z
dc.date.available2014-11-11T14:32:53Z
dc.date.issued2012-02-17
dc.identifier.citationZhang L, Zhang Z, Wang P (2012) Smart surfaces with switchable superoleophilicity and superoleophobicity in aqueous media: toward controllable oil/water separation. NPG Asia Mater 4: e8. doi:10.1038/am.2012.14.
dc.identifier.issn18844049
dc.identifier.doi10.1038/am.2012.14
dc.identifier.urihttp://hdl.handle.net/10754/334633
dc.description.abstractAdvanced materials with surfaces that have controllable oil wettability when submerged in aqueous media have great potential for various underwater applications. Here we have developed smart surfaces on commonly used materials, including non-woven textiles and polyurethane sponges, which are able to switch between superoleophilicity and superoleophobicity in aqueous media. The smart surfaces are obtained by grafting a block copolymer, comprising blocks of pH-responsive poly(2-vinylpyridine) and oleophilic/hydrophobic polydimethylsiloxane (i.e., P2VP-b-PDMS) on these materials. The P2VP block can alter its wettability and its conformation via protonation and deprotonation in response to the pH of the aqueous media, which provides controllable and switchable access of oil by the PDMS block, resulting in the switchable surface oil wettability in the aqueous media. On the other hand, the high flexibility of the PDMS block facilitates the reversible switching of the surface oil wettability. As a proof of concept, we also demonstrate that materials functionalized with our smart surfaces can be used for highly controllable oil/water separation processes.
dc.language.isoen
dc.publisherSpringer Nature
dc.rightshttp://creativecommons.org/licenses/by-nc-sa/3.0/
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/
dc.subjectblock copolymer
dc.subjectoil/water separation
dc.subjectsmart surfaces
dc.subjectwettability
dc.titleSmart surfaces with switchable superoleophilicity and superoleophobicity in aqueous media: Toward controllable oil/water separation
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.contributor.departmentEnvironmental Nanotechnology Lab
dc.contributor.departmentEnvironmental Science and Engineering Program
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)
dc.identifier.journalNPG Asia Materials
dc.eprint.versionPublisher's Version/PDF
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
kaust.personZhang, Lianbin
kaust.personZhang, Zhonghai
kaust.personWang, Peng
refterms.dateFOA2018-06-13T16:02:33Z
dc.date.published-online2012-02-17
dc.date.published-print2012-02


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