A New Organized Media: Glycerol: N,N- Dimethylformamide Mixtures/AOT/ n -Heptane Reversed Micelles. The Effect of Confinement on Preferential Solvation

Autores
Durantini, Andres Matías; Falcone, Ruben Dario; Chessa, Juana Josefa; Correa, Nestor Mariano
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this work we investigate the behavior of theglycerol (GY):N,N-dimethylformamide (DMF) mixture inhomogeneous and sodium 1,4-bis(2-ethylhexyl)sulfosuccinate(AOT)/n-heptane reversed micelles (RMs) media. To achievethis goal we have used the solvatochromic behavior of 1-methyl-8-oxyquinolinium betaine (QB) as an absorption probe, anddynamic light scattering (DLS). QB shows strong preferentialsolvation when it is dissolved in the GY:DMF mixture, and, asQB is a good hydrogen bond acceptor molecular probe, it ispreferentially solvated by the GYDMF hydrogen-bonded(H-bonded) species. On the other hand, when the GY:DMFmixture was investigated in AOT RMs, the results show that themixture is encapsulated in the polar core of the AOT RMs. DLS confirms the formation of the GY:DMF/AOT/n-heptane RMs since an increase in theWs = ([GY] þ [DMF])/[AOT] values causes an increment in the RMs droplets sizes. The solvatochromic behavior of QB, which resides at the AOT RMs interface, shows that QB is mostly solvated by GY molecules, especially at low Ws values. Thus, it seems that upon encapsulation inside the polar core of the AOT RMs, the GYDMF interaction diminishes due to the strong AOTGY interaction. 1HNMR chemical shifts of GY and DMF measured in the different AOT RMs investigated showsthat GY and DMF behave practically as noninteracting solvents inside the RMs.
Fil: Durantini, Andres Matías. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Fil: Falcone, Ruben Dario. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Fil: Chessa, Juana Josefa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Correa, Nestor Mariano. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Materia
Binary mixtures
reverse micelles
glycerol
dimethylformamide
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:11336/241136
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/241136
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling A New Organized Media: Glycerol: N,N- Dimethylformamide Mixtures/AOT/ n -Heptane Reversed Micelles. The Effect of Confinement on Preferential SolvationDurantini, Andres MatíasFalcone, Ruben DarioChessa, Juana JosefaCorrea, Nestor MarianoBinary mixturesreverse micellesglyceroldimethylformamidehttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1In this work we investigate the behavior of theglycerol (GY):N,N-dimethylformamide (DMF) mixture inhomogeneous and sodium 1,4-bis(2-ethylhexyl)sulfosuccinate(AOT)/n-heptane reversed micelles (RMs) media. To achievethis goal we have used the solvatochromic behavior of 1-methyl-8-oxyquinolinium betaine (QB) as an absorption probe, anddynamic light scattering (DLS). QB shows strong preferentialsolvation when it is dissolved in the GY:DMF mixture, and, asQB is a good hydrogen bond acceptor molecular probe, it ispreferentially solvated by the GYDMF hydrogen-bonded(H-bonded) species. On the other hand, when the GY:DMFmixture was investigated in AOT RMs, the results show that themixture is encapsulated in the polar core of the AOT RMs. DLS confirms the formation of the GY:DMF/AOT/n-heptane RMs since an increase in theWs = ([GY] þ [DMF])/[AOT] values causes an increment in the RMs droplets sizes. The solvatochromic behavior of QB, which resides at the AOT RMs interface, shows that QB is mostly solvated by GY molecules, especially at low Ws values. Thus, it seems that upon encapsulation inside the polar core of the AOT RMs, the GYDMF interaction diminishes due to the strong AOTGY interaction. 1HNMR chemical shifts of GY and DMF measured in the different AOT RMs investigated showsthat GY and DMF behave practically as noninteracting solvents inside the RMs.Fil: Durantini, Andres Matías. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; ArgentinaFil: Falcone, Ruben Dario. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; ArgentinaFil: Chessa, Juana Josefa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Correa, Nestor Mariano. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; ArgentinaAmerican Chemical Society2011-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/241136Durantini, Andres Matías; Falcone, Ruben Dario; Chessa, Juana Josefa; Correa, Nestor Mariano; A New Organized Media: Glycerol: N,N- Dimethylformamide Mixtures/AOT/ n -Heptane Reversed Micelles. The Effect of Confinement on Preferential Solvation; American Chemical Society; Journal of Physical Chemistry B; 115; 19; 4-2011; 5894-59021089-56471520-6106CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/abs/10.1021/jp1123822info:eu-repo/semantics/altIdentifier/doi/10.1021/jp1123822info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:31:10Zoai:ri.conicet.gov.ar:11336/241136instacron: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 10:31:11.179CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A New Organized Media: Glycerol: N,N- Dimethylformamide Mixtures/AOT/ n -Heptane Reversed Micelles. The Effect of Confinement on Preferential Solvation
title A New Organized Media: Glycerol: N,N- Dimethylformamide Mixtures/AOT/ n -Heptane Reversed Micelles. The Effect of Confinement on Preferential Solvation
spellingShingle A New Organized Media: Glycerol: N,N- Dimethylformamide Mixtures/AOT/ n -Heptane Reversed Micelles. The Effect of Confinement on Preferential Solvation
Durantini, Andres Matías
Binary mixtures
reverse micelles
glycerol
dimethylformamide
title_short A New Organized Media: Glycerol: N,N- Dimethylformamide Mixtures/AOT/ n -Heptane Reversed Micelles. The Effect of Confinement on Preferential Solvation
title_full A New Organized Media: Glycerol: N,N- Dimethylformamide Mixtures/AOT/ n -Heptane Reversed Micelles. The Effect of Confinement on Preferential Solvation
title_fullStr A New Organized Media: Glycerol: N,N- Dimethylformamide Mixtures/AOT/ n -Heptane Reversed Micelles. The Effect of Confinement on Preferential Solvation
title_full_unstemmed A New Organized Media: Glycerol: N,N- Dimethylformamide Mixtures/AOT/ n -Heptane Reversed Micelles. The Effect of Confinement on Preferential Solvation
title_sort A New Organized Media: Glycerol: N,N- Dimethylformamide Mixtures/AOT/ n -Heptane Reversed Micelles. The Effect of Confinement on Preferential Solvation
dc.creator.none.fl_str_mv Durantini, Andres Matías
Falcone, Ruben Dario
Chessa, Juana Josefa
Correa, Nestor Mariano
author Durantini, Andres Matías
author_facet Durantini, Andres Matías
Falcone, Ruben Dario
Chessa, Juana Josefa
Correa, Nestor Mariano
author_role author
author2 Falcone, Ruben Dario
Chessa, Juana Josefa
Correa, Nestor Mariano
author2_role author
author
author
dc.subject.none.fl_str_mv Binary mixtures
reverse micelles
glycerol
dimethylformamide
topic Binary mixtures
reverse micelles
glycerol
dimethylformamide
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this work we investigate the behavior of theglycerol (GY):N,N-dimethylformamide (DMF) mixture inhomogeneous and sodium 1,4-bis(2-ethylhexyl)sulfosuccinate(AOT)/n-heptane reversed micelles (RMs) media. To achievethis goal we have used the solvatochromic behavior of 1-methyl-8-oxyquinolinium betaine (QB) as an absorption probe, anddynamic light scattering (DLS). QB shows strong preferentialsolvation when it is dissolved in the GY:DMF mixture, and, asQB is a good hydrogen bond acceptor molecular probe, it ispreferentially solvated by the GYDMF hydrogen-bonded(H-bonded) species. On the other hand, when the GY:DMFmixture was investigated in AOT RMs, the results show that themixture is encapsulated in the polar core of the AOT RMs. DLS confirms the formation of the GY:DMF/AOT/n-heptane RMs since an increase in theWs = ([GY] þ [DMF])/[AOT] values causes an increment in the RMs droplets sizes. The solvatochromic behavior of QB, which resides at the AOT RMs interface, shows that QB is mostly solvated by GY molecules, especially at low Ws values. Thus, it seems that upon encapsulation inside the polar core of the AOT RMs, the GYDMF interaction diminishes due to the strong AOTGY interaction. 1HNMR chemical shifts of GY and DMF measured in the different AOT RMs investigated showsthat GY and DMF behave practically as noninteracting solvents inside the RMs.
Fil: Durantini, Andres Matías. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Fil: Falcone, Ruben Dario. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
Fil: Chessa, Juana Josefa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Correa, Nestor Mariano. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina
description In this work we investigate the behavior of theglycerol (GY):N,N-dimethylformamide (DMF) mixture inhomogeneous and sodium 1,4-bis(2-ethylhexyl)sulfosuccinate(AOT)/n-heptane reversed micelles (RMs) media. To achievethis goal we have used the solvatochromic behavior of 1-methyl-8-oxyquinolinium betaine (QB) as an absorption probe, anddynamic light scattering (DLS). QB shows strong preferentialsolvation when it is dissolved in the GY:DMF mixture, and, asQB is a good hydrogen bond acceptor molecular probe, it ispreferentially solvated by the GYDMF hydrogen-bonded(H-bonded) species. On the other hand, when the GY:DMFmixture was investigated in AOT RMs, the results show that themixture is encapsulated in the polar core of the AOT RMs. DLS confirms the formation of the GY:DMF/AOT/n-heptane RMs since an increase in theWs = ([GY] þ [DMF])/[AOT] values causes an increment in the RMs droplets sizes. The solvatochromic behavior of QB, which resides at the AOT RMs interface, shows that QB is mostly solvated by GY molecules, especially at low Ws values. Thus, it seems that upon encapsulation inside the polar core of the AOT RMs, the GYDMF interaction diminishes due to the strong AOTGY interaction. 1HNMR chemical shifts of GY and DMF measured in the different AOT RMs investigated showsthat GY and DMF behave practically as noninteracting solvents inside the RMs.
publishDate 2011
dc.date.none.fl_str_mv 2011-04
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/11336/241136
Durantini, Andres Matías; Falcone, Ruben Dario; Chessa, Juana Josefa; Correa, Nestor Mariano; A New Organized Media: Glycerol: N,N- Dimethylformamide Mixtures/AOT/ n -Heptane Reversed Micelles. The Effect of Confinement on Preferential Solvation; American Chemical Society; Journal of Physical Chemistry B; 115; 19; 4-2011; 5894-5902
1089-5647
1520-6106
CONICET Digital
CONICET
url http://hdl.handle.net/11336/241136
identifier_str_mv Durantini, Andres Matías; Falcone, Ruben Dario; Chessa, Juana Josefa; Correa, Nestor Mariano; A New Organized Media: Glycerol: N,N- Dimethylformamide Mixtures/AOT/ n -Heptane Reversed Micelles. The Effect of Confinement on Preferential Solvation; American Chemical Society; Journal of Physical Chemistry B; 115; 19; 4-2011; 5894-5902
1089-5647
1520-6106
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/abs/10.1021/jp1123822
info:eu-repo/semantics/altIdentifier/doi/10.1021/jp1123822
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
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
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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