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dc.contributor.authorUdabe Sánchez, Esther
dc.contributor.authorSommers, Anthony
dc.contributor.authorForsyth, Maria
dc.contributor.authorMecerreyes Molero, David
dc.date.accessioned2020-12-11T11:09:11Z
dc.date.available2020-12-11T11:09:11Z
dc.date.issued2020-11-06
dc.identifier.citationPolymers 12(11) : (2020) // Article ID 2611es_ES
dc.identifier.issn2073-4360
dc.identifier.urihttp://hdl.handle.net/10810/48945
dc.description.abstractChromate free corrosion inhibitors are searched for to mitigate the economic loss caused by mid-steel corrosion. Here, we show metal-free organic inhibitors having free coumarate anions that can be used either as direct corrosion inhibitors or incorporated into a polymer coating obtained by UV-curing. Four different ionic liquid monomers and polymer coatings with hexoxycoumarate anion and different polymerizable counter cations were investigated. Potentiodynamic polarization, electrochemical impedance spectroscopy, and surface analyses have verified their corrosion inhibition performance on a mild steel AS1020 surface. In the case of the coumarate ionic liquid monomers, the most promising inhibitor is the one coupled with the ammonium cation, showing an inhibition efficiency of 99.1% in solution followed by the imidazolium, pyridinium, and anilinium. Next, the ionic liquid monomers were covalently integrated into an acrylic polymer coating by UV-photopolymerization. In this case, the barrier effect of the polymer coating is combined with the corrosion inhibitor effect of the pendant coumarate anion. Here, the best polymer coatings are those containing 20% imidazolium and pyridinium cations, presenting a greater impedance in the EIS (Electrochemical Impedance Spectroscopy) measurements and less evidence of corrosion in the scribe tests. This article shows that the cationic moiety of coumarate based ionic liquids and poly(ionic liquid)s has a significant effect on their excellent corrosion inhibition properties for a mild steel surface exposed to aqueous chloride solutions.es_ES
dc.description.sponsorshipThe authors would like to thank the European Commission for financial support through funding from the European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement No 823989. E.U. thanks the Spanish MINECO for a FPU fellowship. A.S. and M.F. are grateful for funding from the Australian Research Council through a Discovery Project, DP180101465.es_ES
dc.language.isoenges_ES
dc.publisherMDPIes_ES
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/823989es_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/
dc.subjectcorrosion inhibitorses_ES
dc.subjectionic liquidses_ES
dc.subjectpoly(ionic liquid)ses_ES
dc.titleCation Effect in the Corrosion Inhibition Properties of Coumarate Ionic Liquids and Acrylic UV-Coatingses_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.date.updated2020-11-26T14:10:36Z
dc.rights.holder2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).es_ES
dc.relation.publisherversionhttps://www.mdpi.com/2073-4360/12/11/2611/htmes_ES
dc.identifier.doi10.3390/polym12112611
dc.contributor.funderEuropean Commission
dc.departamentoesCiencia y tecnología de polímeros
dc.departamentoeuPolimeroen zientzia eta teknologia


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2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Except where otherwise noted, this item's license is described as 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).