dc.creator | Lépori, Cristian M.O. | es |
dc.creator | Correa, N. Mariano | es |
dc.creator | Silber, Juana J. | es |
dc.creator | Falcone, R. Darío | es |
dc.creator | López-López, Manuel | es |
dc.creator | Moyá Morán, María Luisa | es |
dc.date.accessioned | 2022-05-30T16:29:55Z | |
dc.date.available | 2022-05-30T16:29:55Z | |
dc.date.issued | 2020 | |
dc.identifier.citation | Lépori, C.M.O., Correa, N.M., Silber, J.J., Falcone, R.D., López-López, M. y Moyá Morán, M.L. (2020). Influence of the AOT Counterion Chemical Structure on the Generation of Organized Systems. Langmuir, 36 (36), 10785-10793. | |
dc.identifier.issn | 0743-7463 | es |
dc.identifier.issn | 1520-5827 | es |
dc.identifier.uri | https://hdl.handle.net/11441/133858 | |
dc.description.abstract | The impact of the imidazolium counterion structure on the organized systems formed by the surfactant 1,4-bis-2-ethylhexylsulfosuccinate, AOT, both in aqueous solutions and in nonpolar solvents is investigated. With this in mind, we investigated if the ionic liquid-like (IL-like) surfactant 1-ethyl-3-methylimidazolium 1,4-bis-2-ethylhexylsulfosuccinate, emim-AOT, forms direct micelles or vesicles in water. Dynamic light scattering, zeta potential, conductivity, fluorescence spectroscopy, and UV-visible spectroscopy measurements were performed to characterize the organized systems in aqueous solutions. We also studied the self-aggregation of emim-AOT, 1-butyl-3-methylimidazolium 1,4-bis-2-ethylhexylsulfosuccinate, bmim-AOT, and of 1-hexyl-3-methylimidazolium 1,4-bis-2-ethylhexylsulfosuccinate, hmim-AOT, in nonpolar solvents. The results obtained showed that the IL-like surfactant emim-AOT forms direct micelles in water, as sodium 1,4-bis-2-ethylhexylsulfosuccinate (Na-AOT) does. However, emim-AOT aggregates are larger, have a lower surface charge, are more stable, and have a more polar and less fluid micellar interface than Na-AOT micelles. It was also observed that emim-AOT and hmim-AOT form reverse micelles in nonpolar solvents. The size of the imidazolium cations dramatically influences the size of the reverse micelles and their ability to solubilize water. | es |
dc.description.sponsorship | Junta de Andalucía P12-FQM1105 | es |
dc.description.sponsorship | Consejo Nacional de Investigaciones Científicas y Técnicas PIP CONICET 112-2015-0100283 | es |
dc.description.sponsorship | Universidad Nacional de Río Cuarto PPI-UNRC 2016- 2018, 2020-2024 | es |
dc.description.sponsorship | Agencia Nacional de Promoción Científica y Técnica PICT 2018- 0508 | es |
dc.format | application/pdf | es |
dc.format.extent | 32 p. | es |
dc.language.iso | eng | es |
dc.publisher | American Chemical Society | es |
dc.relation.ispartof | Langmuir, 36 (36), 10785-10793. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.title | Influence of the AOT Counterion Chemical Structure on the Generation of Organized Systems | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/submittedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Química Física | es |
dc.relation.projectID | P12-FQM1105 | es |
dc.relation.projectID | PIP CONICET 112-2015-0100283 | es |
dc.relation.projectID | PPI-UNRC 2016- 2018 | es |
dc.relation.projectID | 2020-2024 | es |
dc.relation.projectID | PICT 2018- 0508 | es |
dc.relation.publisherversion | https://doi.org/10.1021/acs.langmuir.0c01575 | es |
dc.identifier.doi | 10.1021/acs.langmuir.0c01575 | es |
dc.journaltitle | Langmuir | es |
dc.publication.volumen | 36 | es |
dc.publication.issue | 36 | es |
dc.publication.initialPage | 10785 | es |
dc.publication.endPage | 10793 | es |
dc.contributor.funder | Junta de Andalucía | es |
dc.contributor.funder | Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina) | es |
dc.contributor.funder | Universidad Nacional de Río Cuarto | es |
dc.contributor.funder | Agencia Nacional de Promoción Científica y Técnica (Argentina) | es |