Synthesis and optimization of colloidal silica nanoparticles and their functionalization with methacrylic acid

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dc.contributor.authorArantes, Tatiane M.
dc.contributor.authorPinto, Alexandre H.
dc.contributor.authorLeite, Edson R.
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.authorCamargo, Emerson R.
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T14:17:38Z
dc.date.available2014-05-20T14:17:38Z
dc.date.issued2012-12-05
dc.description.abstractThe synthesis of colloidal SiO2 nanoparticles was achieved via the base-catalyzed hydrolysis and polycondensation of tetraethyl orthosilicate (TEOS) in an alcoholic medium with the careful variation of the concentrations of water, ammonia and TEOS. In this study, we investigated the influence of experimental parameters on the average size of nanoparticles by means of a multivariate statistical analysis using a factorial design to create one model to predict particle size in function of experimental conditions. This model predicted that it is possible to synthesize silica nanoparticles with size in the range from 17 to 333 nm, according to the chosen condition for the amount of water, ammonia and TEOS. It was observed that only the molar amount of NH3, the molar amount of H2O and the effect from interaction between molar amount of TEOS and H2O were significant. Subsequently, surface modification of the colloidal silica was performed in situ using the coupling agent 3(trimethoxysilyl)propyl methacrylate (TMSPM). (c) 2012 Elsevier B.V. All rights reserved.en
dc.description.affiliationUFSCar Fed Univ São Carlos, Dept Chem, LIEC, BR-13565905 São Carlos, SP, Brazil
dc.description.affiliationUNESP São Paulo State Univ, Dept Biochem & Technol Chem, Chem Inst Araraquara, LIEC IQ, BR-14801907 Araraquara, Brazil
dc.description.affiliationUnespUNESP São Paulo State Univ, Dept Biochem & Technol Chem, Chem Inst Araraquara, LIEC IQ, BR-14801907 Araraquara, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 10/13735-0
dc.description.sponsorshipIdFAPESP: 08/09697-6
dc.description.sponsorshipIdCNPq: 470009-7/2010
dc.format.extent209-217
dc.identifierhttp://dx.doi.org/10.1016/j.colsurfa.2012.09.041
dc.identifier.citationColloids and Surfaces A-physicochemical and Engineering Aspects. Amsterdam: Elsevier B.V., v. 415, p. 209-217, 2012.
dc.identifier.doi10.1016/j.colsurfa.2012.09.041
dc.identifier.issn0927-7757
dc.identifier.urihttp://hdl.handle.net/11449/25282
dc.identifier.wosWOS:000312575900028
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofColloids and Surfaces A: Physicochemical and Engineering Aspects
dc.relation.ispartofjcr2.829
dc.relation.ispartofsjr0,753
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectSilica nanoparticlesen
dc.subjectFactorial designen
dc.subjectParticle sizeen
dc.subjectSurface functionalizationen
dc.titleSynthesis and optimization of colloidal silica nanoparticles and their functionalization with methacrylic aciden
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt

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