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dc.contributorUniv Mayor, Fac Ciencias, Ingn Construcc, Chilees
dc.contributorUniv Mayor, Fac Ciencias, Ctr Nanotecnol Aplicada, Chilees
dc.contributor.authorDel Valle, M. A.
dc.contributor.authorMieres, E. [Univ Mayor, Fac Ciencias, Ingn Construcc, Chile]
dc.contributor.authorMotheo, A.
dc.contributor.authorRamírez, A. M. R. [Univ Mayor, Fac Ciencias, Ctr Nanotecnol Aplicada, Chile]
dc.date.accessioned2024-01-02T18:06:06Z
dc.date.available2024-01-02T18:06:06Z
dc.date.issued2020-12
dc.identifier.citationDel Valle, M. A., Mieres, F., Motheo, A., & Ramírez, A. M. R. (2020). Effect of the monomers ratio in the electrosynthesis of poly (aniline-co-o-methoxyaniline) on steel corrosion protection. Journal of the Chilean Chemical Society, 65(4), 4998-5003.es
dc.identifier.issn0717-9707
dc.identifier.otherWOS: 000596297000012
dc.identifier.urihttps://repositorio.umayor.cl/xmlui/handle/sibum/9189
dc.identifier.urihttps://www.scielo.cl/pdf/jcchems/v65n4/0717-9707-jcchems-65-04-4998.pdf
dc.identifier.urihttp://dx.doi.org/10.4067/S0717-97072020000404998
dc.description.abstractIn this work, the synthesis of poly(aniline-co-o-methoxyaniline) was carried out on AISI 304 steel, by voltammetric or potentiostatic method. Electropolymerization was achieved from different ratios of 0.4 mol.L-1 aniline/o-methoxyaniline monomers in 1.0 mol.L-1 H2SO4. Homo- and copolymers were characterized by cyclic voltammetry, infrared spectroscopy, and scanning electron microscopy. Furthermore, the electrodeposits were studied with a view to their use as corrosion protectors, for which their polarization curve was measured in NaCl 3% and, after 168 h, the surface of the steel was also evaluated by optical microscopy. It was observed that the reactivity that the o-methoxy group gives to the aniline ring reduces the protection against corrosion due to the excessive inclusion of N-phenyl-1,4-benzo quinonedi-imine oligomers and/or with an oxazine structure. On the other hand, the optical images confirm the surface damage of the steel, correlating with SEM images that show morphological changes associated with the progress of synthesis and the o-methoxy group. Nevertheless, under optimal conditions, poly(aniline-co-o-methoxyaniline) modifies the corrosion potential of AISI 304 steel, displacing it by 0.283 V. Furthermore, the presence of small pits and the absence of surface oxide was observed, indicating a significant delay in the oxidation of AISI-304 steel.es
dc.description.sponsorshipThe authors acknowledge the financial support of Universidad Mayor I2019059 and ANID-Chile through Fondecyt 11190995.es
dc.format.extent6 p., PDFes
dc.language.isoen_USes
dc.publisherSOC CHILENA QUIMICAes
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Chilees
dc.titleEffect of the monomers ratio in the electrosynthesis of poly (aniline-co-o-methoxyaniline) on steel corrosion protectiones
dc.typeArtículo o Paperes
umayor.indizadorCOTes
umayor.indexadoWeb of Sciencees
umayor.indexadoScopuses
umayor.indexadoScieloes
dc.identifier.doi10.4067/S0717-97072020000404998
umayor.indicadores.wos-(cuartil)Q4
umayor.indicadores.scopus-(scimago-sjr)SCIMAGO/ INDICE H: 37
umayor.indicadores.scopus-(scimago-sjr)SJR 0,28


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