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dc.creatorStojanović, Dušica
dc.creatorOrlović, Aleksandar
dc.creatorGlišić, Sandra
dc.creatorMarković, Smilja
dc.creatorRadmilović, Velimir R.
dc.creatorUskoković, Petar
dc.creatorAleksić, Radoslav
dc.date.accessioned2021-03-10T11:23:07Z
dc.date.available2021-03-10T11:23:07Z
dc.date.issued2010
dc.identifier.issn0896-8446
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/1701
dc.description.abstractThe objective of this study is to investigate and compare methods of nanosilica coating with gamma-methacryloxypropyltrimethoxy (MEMO) silane using supercritical carbon dioxide and carbon dioxide-ethanol mixture. Characterization of grafted silane coupling agent on the nanosilica surface was performed by the infrared spectroscopy (FTIR) and thermogravimetric analysis (TGA). The d(50) value and particle size distribution were determined by laser particle size analyzer (PSA). The operating parameters of silanization process at 40 degrees C, such as the silica/silane weight ratio, the presence of ethanol, and the pressure, were found to be important for the successful coating of silica particles with minimum agglomeration. The results indicate that presence of ethanol in high-pressure carbon dioxide plays an important role in achieving successful deagglomeration of coated nanoparticles. Dynamic mechanical analysis (DMA) and scanning electron microscopy (SEM) revealed that dispersion of the silica particles in the PMMA matrix and interfacial adhesion between silica particles and polymer matrix were enhanced, when silica nanoparticles treated with silane under high pressure of carbon dioxide and ethanol were used for the nanocomposite preparation.en
dc.publisherElsevier, Amsterdam
dc.relationinfo:eu-repo/grantAgreement/MESTD/MPN2006-2010/142006/RS//
dc.relationU.S. Department of EnergyUnited States Department of Energy (DOE) [DE-AC02-05CH11231]
dc.rightsrestrictedAccess
dc.sourceJournal of Supercritical Fluids
dc.subjectSupercritical coatingen
dc.subjectNanoparticlesen
dc.subjectSilanizationen
dc.subjectSupercritical mixture of carbon dioxide and ethanolen
dc.subjectNanocompositeen
dc.titlePreparation of MEMO silane-coated SiO2 nanoparticles under high pressure of carbon dioxide and ethanolen
dc.typearticle
dc.rights.licenseARR
dc.citation.epage284
dc.citation.issue3
dc.citation.other52(3): 276-284
dc.citation.rankaM21
dc.citation.spage276
dc.citation.volume52
dc.identifier.doi10.1016/j.supflu.2010.02.004
dc.identifier.rcubconv_3386
dc.identifier.scopus2-s2.0-77949320349
dc.identifier.wos000277058200005
dc.type.versionpublishedVersion


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