Organofunctionalized RUB-18 from the intercalated precursor cetyltrimethylammonium cation

dc.creatorMacedo, TR
dc.creatorAiroldi, C
dc.date2010
dc.dateMAR
dc.date2014-11-14T04:11:47Z
dc.date2015-11-26T17:13:11Z
dc.date2014-11-14T04:11:47Z
dc.date2015-11-26T17:13:11Z
dc.date.accessioned2018-03-29T00:01:33Z
dc.date.available2018-03-29T00:01:33Z
dc.identifierMicroporous And Mesoporous Materials. Elsevier Science Bv, v. 128, n. 41699, n. 158, n. 164, 2010.
dc.identifier1387-1811
dc.identifierWOS:000273105800022
dc.identifier10.1016/j.micromeso.2009.08.026
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/69748
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/69748
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/69748
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1281510
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCrystalline layered sodium RUB-18 of the general formula Na(2)Si(8)O(17)center dot nH(2)O was organofunctionalized after prior cetyltrimethylammonium ion intercalation. The intermediate cetyltrimethylammonium-exchanged RUB-18 (CTA-RUB-18) was used with three different types of silane coupling reagents: 3-aminopropyltriethoxysilane (N), N-3-trimethoxysilylpropylethylenediamine (2 N) and N-3-trimethoxysilylpropyldiethylenetriamine (3 N). All silylated derivatives were successfully synthesized through a methodology based on the use of small amounts of the silylating agents, with the conventional reflux procedure. The organofunctionalized materials were characterized by X-ray diffraction, chemical analysis of carbon, hydrogen and nitrogen, infrared spectroscopy, thermogravimetry and scanning electron microscopy. The organosilyl pendant chains were covalently inserted onto the intercalated layered RUB-18 compound as shown by the structural evidence illustrated by (29)Si and (13)C NMR spectroscopy in the solid state. Correlations between the interlammelar distance (d) and the number of grafted organosilyl chains (n) on the silicate surface as a function of the number of atoms (n(a)) in the pendant chains were obtained, represented by the equations: d = 0.65 + 0.32n(a) and n = 3.71-0.29n(a), respectively. These synthesized inorganic-organic nanostructured hybrids may be applied for the construction of new nanomaterials, starting from hydrated layered silicates. (C) 2009 Elsevier Inc. All rights reserved.
dc.description128
dc.description41699
dc.description158
dc.description164
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.languageen
dc.publisherElsevier Science Bv
dc.publisherAmsterdam
dc.publisherHolanda
dc.relationMicroporous And Mesoporous Materials
dc.relationMicroporous Mesoporous Mat.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectRUB-18
dc.subjectLayered material
dc.subjectIntercalation
dc.subjectOrganofunctionalization
dc.subjectSilicate
dc.subjectSilicic-acid Magadiite
dc.subjectSodium Octosilicate
dc.subjectLayered Silicates
dc.subjectInterlayer Space
dc.subjectNanocomposites
dc.subjectDerivatives
dc.subjectKenyaite
dc.subjectAlkylamines
dc.subjectAdsorption
dc.subjectFeatures
dc.titleOrganofunctionalized RUB-18 from the intercalated precursor cetyltrimethylammonium cation
dc.typeArtículos de revistas


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