Influence of cerium (IV) ions on the mechanism of organosilane polymerization and on the improvement of its barrier properties

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorSuegama, P. H.
dc.creatorde Melo, H. G.
dc.creatorBenedetti, Assis Vicente
dc.creatorAoki, I. V.
dc.date2014-05-20T14:18:27Z
dc.date2016-10-25T17:40:32Z
dc.date2014-05-20T14:18:27Z
dc.date2016-10-25T17:40:32Z
dc.date2009-03-30
dc.date.accessioned2017-04-05T22:28:17Z
dc.date.available2017-04-05T22:28:17Z
dc.identifierElectrochimica Acta. Oxford: Pergamon-Elsevier B.V. Ltd, v. 54, n. 9, p. 2655-2662, 2009.
dc.identifier0013-4686
dc.identifierhttp://hdl.handle.net/11449/25559
dc.identifierhttp://acervodigital.unesp.br/handle/11449/25559
dc.identifier10.1016/j.electacta.2008.11.007
dc.identifierWOS:000264743900039
dc.identifierhttp://dx.doi.org/10.1016/j.electacta.2008.11.007
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/870427
dc.descriptionIn this work, the effect of cerium (IV) ammonium nitrate (CAN) addition on the polymerization of bis-[triethoxysilyl]ethane (BTSE) film applied on carbon steel was studied. The electrochemical characterization of the films was carried out in 0.1 mol L(-1) NaCl solution by open-circuit potential measurements, anodic and cathodic polarization curves and electrochemical impedance spectroscopy (EIS). Morphological and chemical characterization were performed by atomic force microscopy (AFM), contact angle measurements, infrared-spectroscopy, nuclear magnetic resonance and thermogravimetric analysis. The results have clearly shown the improvement on the protective properties of the Ce(4+) modified film as a consequence of the formation of a more uniform and densely reticulated silane film. A mechanism is proposed to explain the accelerating role of Ce(4+) ions on the cross-linking of the silane layer. (C) 2008 Elsevier Ltd. All rights reserved.
dc.languageeng
dc.publisherPergamon-Elsevier B.V. Ltd
dc.relationElectrochimica Acta
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectSilane
dc.subjectCerium (IV) ammonium nitrate
dc.subjectCorrosion protection
dc.titleInfluence of cerium (IV) ions on the mechanism of organosilane polymerization and on the improvement of its barrier properties
dc.typeOtro


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