Effect of the concentration and composition on the size and shape of micelles of sodium oleate-cetyltrimethylammonium bromide mixtures

Autores
Miraglia, Daniela Belen; Schulz, Pablo Carlos; Rodríguez, José Luis Mariano; Schulz, Pablo Carlos; Salinas, Daniel Ricardo
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The dependence of the aggregation number (Nagg) on composition and concentration of sodium oleate-cetyltrimethylammonium bromide mixed micelles as revealed by cyclic voltammetry experiments shows a complex relationship with the total concentration and the composition of surfactant mixtures. This behavior is related to the evolution with composition of the HLB values and with the composition and the excess free energy of mixed micellization, and is explained by the inclusion of the double bonds of oleate chains in the micellar Stern layers. The increase in size probably leads to a reduction of the micelle surface available for the polar headgroups, causing a reduction in the proportion of double bonds in the hydrocarbon-water interface and a change in the mixed micelle composition. Therefore, the generally held supposition that the composition of mixed micelles does not change with concentration seems rather unrealistic. © 2010 Elsevier Inc.
Fil: Miraglia, Daniela Belen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Schulz, Pablo Carlos. Universidad Nacional del Sur. Departamento de Ingeniería Química; Argentina
Fil: Rodríguez, José Luis Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Schulz, Pablo Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Salinas, Daniel Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química; Argentina
Materia
Aggregation Number
Cetyltrimethylammonium Bromide
Cyclic Voltammetry
Mixed Micelles
Sodium Oleate
Water Double Bonds Interaction
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/62073
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/62073
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effect of the concentration and composition on the size and shape of micelles of sodium oleate-cetyltrimethylammonium bromide mixturesMiraglia, Daniela BelenSchulz, Pablo CarlosRodríguez, José Luis MarianoSchulz, Pablo CarlosSalinas, Daniel RicardoAggregation NumberCetyltrimethylammonium BromideCyclic VoltammetryMixed MicellesSodium OleateWater Double Bonds Interactionhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The dependence of the aggregation number (Nagg) on composition and concentration of sodium oleate-cetyltrimethylammonium bromide mixed micelles as revealed by cyclic voltammetry experiments shows a complex relationship with the total concentration and the composition of surfactant mixtures. This behavior is related to the evolution with composition of the HLB values and with the composition and the excess free energy of mixed micellization, and is explained by the inclusion of the double bonds of oleate chains in the micellar Stern layers. The increase in size probably leads to a reduction of the micelle surface available for the polar headgroups, causing a reduction in the proportion of double bonds in the hydrocarbon-water interface and a change in the mixed micelle composition. Therefore, the generally held supposition that the composition of mixed micelles does not change with concentration seems rather unrealistic. © 2010 Elsevier Inc.Fil: Miraglia, Daniela Belen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; ArgentinaFil: Schulz, Pablo Carlos. Universidad Nacional del Sur. Departamento de Ingeniería Química; ArgentinaFil: Rodríguez, José Luis Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; ArgentinaFil: Schulz, Pablo Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; ArgentinaFil: Salinas, Daniel Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química; ArgentinaAcademic Press Inc Elsevier Science2010-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/62073Miraglia, Daniela Belen; Schulz, Pablo Carlos; Rodríguez, José Luis Mariano; Schulz, Pablo Carlos; Salinas, Daniel Ricardo; Effect of the concentration and composition on the size and shape of micelles of sodium oleate-cetyltrimethylammonium bromide mixtures; Academic Press Inc Elsevier Science; Journal of Colloid and Interface Science; 351; 1; 11-2010; 197-2020021-9797CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jcis.2010.07.040info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S002197971000812X?via%3Dihubinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:23:41Zoai:ri.conicet.gov.ar:11336/62073instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:23:41.881CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effect of the concentration and composition on the size and shape of micelles of sodium oleate-cetyltrimethylammonium bromide mixtures
title Effect of the concentration and composition on the size and shape of micelles of sodium oleate-cetyltrimethylammonium bromide mixtures
spellingShingle Effect of the concentration and composition on the size and shape of micelles of sodium oleate-cetyltrimethylammonium bromide mixtures
Miraglia, Daniela Belen
Aggregation Number
Cetyltrimethylammonium Bromide
Cyclic Voltammetry
Mixed Micelles
Sodium Oleate
Water Double Bonds Interaction
title_short Effect of the concentration and composition on the size and shape of micelles of sodium oleate-cetyltrimethylammonium bromide mixtures
title_full Effect of the concentration and composition on the size and shape of micelles of sodium oleate-cetyltrimethylammonium bromide mixtures
title_fullStr Effect of the concentration and composition on the size and shape of micelles of sodium oleate-cetyltrimethylammonium bromide mixtures
title_full_unstemmed Effect of the concentration and composition on the size and shape of micelles of sodium oleate-cetyltrimethylammonium bromide mixtures
title_sort Effect of the concentration and composition on the size and shape of micelles of sodium oleate-cetyltrimethylammonium bromide mixtures
dc.creator.none.fl_str_mv Miraglia, Daniela Belen
Schulz, Pablo Carlos
Rodríguez, José Luis Mariano
Schulz, Pablo Carlos
Salinas, Daniel Ricardo
author Miraglia, Daniela Belen
author_facet Miraglia, Daniela Belen
Schulz, Pablo Carlos
Rodríguez, José Luis Mariano
Salinas, Daniel Ricardo
author_role author
author2 Schulz, Pablo Carlos
Rodríguez, José Luis Mariano
Salinas, Daniel Ricardo
author2_role author
author
author
dc.subject.none.fl_str_mv Aggregation Number
Cetyltrimethylammonium Bromide
Cyclic Voltammetry
Mixed Micelles
Sodium Oleate
Water Double Bonds Interaction
topic Aggregation Number
Cetyltrimethylammonium Bromide
Cyclic Voltammetry
Mixed Micelles
Sodium Oleate
Water Double Bonds Interaction
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The dependence of the aggregation number (Nagg) on composition and concentration of sodium oleate-cetyltrimethylammonium bromide mixed micelles as revealed by cyclic voltammetry experiments shows a complex relationship with the total concentration and the composition of surfactant mixtures. This behavior is related to the evolution with composition of the HLB values and with the composition and the excess free energy of mixed micellization, and is explained by the inclusion of the double bonds of oleate chains in the micellar Stern layers. The increase in size probably leads to a reduction of the micelle surface available for the polar headgroups, causing a reduction in the proportion of double bonds in the hydrocarbon-water interface and a change in the mixed micelle composition. Therefore, the generally held supposition that the composition of mixed micelles does not change with concentration seems rather unrealistic. © 2010 Elsevier Inc.
Fil: Miraglia, Daniela Belen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Schulz, Pablo Carlos. Universidad Nacional del Sur. Departamento de Ingeniería Química; Argentina
Fil: Rodríguez, José Luis Mariano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Schulz, Pablo Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Química del Sur. Universidad Nacional del Sur. Departamento de Química. Instituto de Química del Sur; Argentina
Fil: Salinas, Daniel Ricardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química; Argentina
description The dependence of the aggregation number (Nagg) on composition and concentration of sodium oleate-cetyltrimethylammonium bromide mixed micelles as revealed by cyclic voltammetry experiments shows a complex relationship with the total concentration and the composition of surfactant mixtures. This behavior is related to the evolution with composition of the HLB values and with the composition and the excess free energy of mixed micellization, and is explained by the inclusion of the double bonds of oleate chains in the micellar Stern layers. The increase in size probably leads to a reduction of the micelle surface available for the polar headgroups, causing a reduction in the proportion of double bonds in the hydrocarbon-water interface and a change in the mixed micelle composition. Therefore, the generally held supposition that the composition of mixed micelles does not change with concentration seems rather unrealistic. © 2010 Elsevier Inc.
publishDate 2010
dc.date.none.fl_str_mv 2010-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/62073
Miraglia, Daniela Belen; Schulz, Pablo Carlos; Rodríguez, José Luis Mariano; Schulz, Pablo Carlos; Salinas, Daniel Ricardo; Effect of the concentration and composition on the size and shape of micelles of sodium oleate-cetyltrimethylammonium bromide mixtures; Academic Press Inc Elsevier Science; Journal of Colloid and Interface Science; 351; 1; 11-2010; 197-202
0021-9797
CONICET Digital
CONICET
url http://hdl.handle.net/11336/62073
identifier_str_mv Miraglia, Daniela Belen; Schulz, Pablo Carlos; Rodríguez, José Luis Mariano; Schulz, Pablo Carlos; Salinas, Daniel Ricardo; Effect of the concentration and composition on the size and shape of micelles of sodium oleate-cetyltrimethylammonium bromide mixtures; Academic Press Inc Elsevier Science; Journal of Colloid and Interface Science; 351; 1; 11-2010; 197-202
0021-9797
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jcis.2010.07.040
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S002197971000812X?via%3Dihub
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Academic Press Inc Elsevier Science
publisher.none.fl_str_mv Academic Press Inc Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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