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Tailor-made surface properties of particles with a hydrophilic or hydrophobic polymer shell mediated by supercritical CO2

hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorMARRE, Samuel
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorCANSELL, François
hal.structure.identifierInstitut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
dc.contributor.authorAYMONIER, Cyril
dc.date.issued2008
dc.identifier.issn0743-7463
dc.description.abstractEnControlling the surface characteristics of inorganic materials with an organic shell is of great interest for control of the properties of the final material. A challenge is thus to be able to deposit a polymer shell with different solvation properties onto the surface of inorganic particles and to have a good control of the thickness of the organic layer without a prefunctionalization of surfaces. We demonstrate, in this paper, a method for coating silica particles (170-550 nm), used as model substrates, with either a hydrophilic (polyethylene glycol) or a hydrophobic polymer (polybutadiene hydroxy terminated) using a supercritical antisolvent process (precipitation from a compressed antisolvent). Several operating parameters were studied to control precisely the thickness of the deposited layer (from 2 to 30 nm), which was characterized using TEM, FESEM, XPS, and UV-visible techniques. This work demonstrates that supercritical antisolvent processes are powerful methods and good alternatives to conventional coating techniques toward the development of hybrid and/or core-shell nanomaterials.
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.subject.enSupercritical Fluids
dc.subject.enCarbon dioxide
dc.subject.enSurface properties
dc.subject.enHydrophobic polymer
dc.subject.enHydropholic polymer
dc.title.enTailor-made surface properties of particles with a hydrophilic or hydrophobic polymer shell mediated by supercritical CO2
dc.typeArticle de revue
dc.identifier.doi10.1021/la702154z
dc.subject.halChimie/Matériaux
bordeaux.journalLangmuir
bordeaux.page252-258
bordeaux.volume24
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-00202707
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00202707v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Langmuir&rft.date=2008&rft.volume=24&rft.issue=1&rft.spage=252-258&rft.epage=252-258&rft.eissn=0743-7463&rft.issn=0743-7463&rft.au=MARRE,%20Samuel&CANSELL,%20Fran%C3%A7ois&AYMONIER,%20Cyril&rft.genre=article


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