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dc.contributor.authorAl-Soufi, Wajih
dc.contributor.authorPiñeiro Maseda, Lucas
dc.contributor.authorNovo Rodríguez, María de la Merced
dc.date.accessioned2018-07-27T08:39:14Z
dc.date.available2018-07-27T08:39:14Z
dc.date.issued2012
dc.identifier.citationAl-Soufi, W., Piñeiro, L., & Novo, M. (2012). A model for monomer and micellar concentrations in surfactant solutions: Application to conductivity, NMR, diffusion, and surface tension data. Journal Of Colloid And Interface Science, 370(1), 102-110. doi: 10.1016/j.jcis.2011.12.037
dc.identifier.issn0021-9797
dc.identifier.urihttp://hdl.handle.net/10347/17083
dc.descriptionThis is the accepted manuscript of the following article: Al-Soufi, W., Piñeiro, L., & Novo, M. (2012). A model for monomer and micellar concentrations in surfactant solutions: Application to conductivity, NMR, diffusion, and surface tension data. Journal Of Colloid And Interface Science, 370(1), 102-110. doi: 10.1016/j.jcis.2011.12.037. © 2012 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
dc.description.abstractAn empirical model for the concentrations of monomeric and micellized surfactants in solution is presented as a consistent approach for the quantitative analysis of data obtained with different experimental techniques from surfactant solutions. The concentration model provides an objective definition of the critical micelle concentration (cmc) and yields precise and well defined values of derived physical parameters. The use of a general concentration model eliminates subjective graphical procedures, reduces methodological differences, and thus allows one to compare directly the results of different techniques or to perform global fits. The application and validity of the model are demonstrated with electrical conductivity, surface tension, NMR chemical shift, and self-diffusion coefficient data for the surfactants SDS, CTAB, DTAB, and LAS. In all cases, the derived models yield excellent fits of the data. It is also shown that there is no need to assume the existence of different premicellar species in order to explain the chemical shifts and self-diffusion coefficients of SDS as claimed recently by some authors
dc.description.sponsorshipL.P. thanks the Gil Dávila Foundation for a scholarship. M.N. and W.A. thank the Ministerio de Ciencia e Innovación and the Xunta de Galicia for their financial support (CTQ2010-21369, INCITE09262304PR, INCITE09E2R209064ES, IN845B-2010/094)
dc.language.isoeng
dc.publisherElsevier
dc.rights© 2012 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectSurfactants
dc.subjectMicelles
dc.subjectCritical micelle concentration
dc.subjectConcentration model
dc.subjectData analysis
dc.titleA model for monomer and micellar concentrations in surfactant solutions: application to conductivity, NMR, diffusion, and surface tension data
dc.typeinfo:eu-repo/semantics/article
dc.identifier.DOI10.1016/j.jcis.2011.12.037
dc.relation.publisherversionhttps://doi.org/10.1016/j.jcis.2011.12.037
dc.type.versioninfo:eu-repo/semantics/acceptedVersion
dc.rights.accessrightsinfo:eu-repo/semantics/openAccess
dc.contributor.affiliationUniversidade de Santiago de Compostela. Departamento de Química Física
dc.description.peerreviewedSI


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© 2012 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Except where otherwise noted, this item's license is described as  © 2012 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 license (http://creativecommons.org/licenses/by-nc-nd/4.0/)





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