Functionalized silica synthesized by sol-gel process

dc.contributor.authorNassar, E. J.
dc.contributor.authorNeri, C. R.
dc.contributor.authorCalefi, P. S.
dc.contributor.authorSerra, O. A.
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T15:22:57Z
dc.date.available2014-05-20T15:22:57Z
dc.date.issued1999-05-01
dc.description.abstractThis work considers some aspects of the chemistry involved in the preparation and description of silicon oxide functionalized by sol-gel process. In this work we studied the synthesis and measured the properties of silicon oxide functionalized with 3-chloropropyl, through a sol-gel process. Thermogravimetic analysis, infrared spectra, and elemental analyses were measured. The samples were prepared in the following proportions of tetraethylorthosilicate (TEOS): 3-chloropropyl trimethoxisilane molar ratio: 1:0, 1:1, 2:1, 3:1 and 4:1. The thermogravimetric data for the resulting materials established the 'minimum formulae' 2:0, 3:1, 4.1, 7:1 and 11:1, respectively. As expected, the relative amount of water is inversely proportional to the presence of propyl groups. Infrared data show Si-C and -CH2-vibration modes at 1250 to 1280 and 2920 to 2940 cm(-1), respectively. Thermogravimetric data and infrared spectra showed that inorganic polymers contained organic polymers. (C) 1999 Elsevier B.V. B.V. All rights reserved.en
dc.description.affiliationUniv São Paulo, FFCLRP, Dept Chem, Lab Rare Earth, BR-14040901 Ribeirao Preto, SP, Brazil
dc.description.affiliationUNESP, Inst Chem, Araraquara, SP, Brazil
dc.description.affiliationUnespUNESP, Inst Chem, Araraquara, SP, Brazil
dc.format.extent124-128
dc.identifierhttp://dx.doi.org/10.1016/S0022-3093(99)00046-0
dc.identifier.citationJournal of Non-crystalline Solids. Amsterdam: Elsevier B.V., v. 247, p. 124-128, 1999.
dc.identifier.doi10.1016/S0022-3093(99)00046-0
dc.identifier.issn0022-3093
dc.identifier.urihttp://hdl.handle.net/11449/33837
dc.identifier.wosWOS:000080506900023
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofJournal of Non-Crystalline Solids
dc.relation.ispartofjcr2.488
dc.relation.ispartofsjr0,722
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleFunctionalized silica synthesized by sol-gel processen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.

Arquivos

Licença do Pacote
Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:

Coleções