Adsorption Of Silanes Bearing Nitrogenated Lewis Bases On Sio 2/si (100) Model Surfaces

dc.creatorAndresa J.S.
dc.creatorReis R.M.
dc.creatorGonzalez E.P.
dc.creatorSantos L.S.
dc.creatorEberlin M.N.
dc.creatorNascente P.A.D.P.
dc.creatorTanimoto S.T.
dc.creatorMachado S.A.S.
dc.creatorRodrigues-Filho U.P.
dc.date2005
dc.date2015-06-26T14:06:05Z
dc.date2015-11-26T15:40:12Z
dc.date2015-06-26T14:06:05Z
dc.date2015-11-26T15:40:12Z
dc.date.accessioned2018-03-28T22:48:42Z
dc.date.available2018-03-28T22:48:42Z
dc.identifier
dc.identifierJournal Of Colloid And Interface Science. , v. 286, n. 1, p. 303 - 309, 2005.
dc.identifier219797
dc.identifier10.1016/j.jcis.2005.01.019
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-17744371164&partnerID=40&md5=85fc59e1ba86a3f60a11cfb89ccee5b5
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/93060
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/93060
dc.identifier2-s2.0-17744371164
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1264324
dc.descriptionThe present paper describes the one-pot procedure for the formation of self-assembled thin films of two silanes on the model oxidized silicon wafer, SiO2/Si. SiO2/Si is a model system for other surfaces, such as glass, quartz, aerosol, and silica gel. MALDI-TOF MS with and without a matrix, XPS, and AFM have confirmed the formation of self-assembled thin films of both 3-imidazolylpropyltrimethoxysilane (3-IPTS) and 4-(N- propyltriethoxysilane-imino)pyridine (4-PTSIP) on the SiO2/Si surface after 30 min. Longer adsorption times lead to the deposition of nonreacted 3-IPTS precursors and the formation of agglomerates on the 3-IPTS monolayer. The formation of 4-PTSIP self-assembled layers on SiO2/Si is also demonstrated. The present results for the flat SiO2/Si surface can lead to a better understanding of the formation of a stationary phase for affinity chromatography as well as transition-metal-supported catalysts on silica and their relationship with surface roughness and ordering. The 3-IPTS and 4-PTSIP modified SiO2/Si wafers can also be envisaged as possible built-on-silicon thin-layer chromatography (TLC) extraction devices for metal determination or N-heterocycle analytes, such as histidine and histamine, with "on-spot" MALDI-TOF MS detection. © 2005 Elsevier Inc. All rights reserved.
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dc.languageen
dc.publisher
dc.relationJournal of Colloid and Interface Science
dc.rightsfechado
dc.sourceScopus
dc.titleAdsorption Of Silanes Bearing Nitrogenated Lewis Bases On Sio 2/si (100) Model Surfaces
dc.typeArtículos de revistas


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