Equilibrium and dynamic surface properties of trisiloxane aqueous solutions. Part 2. Theory and comparison with experiment

Autores
Ritacco, Hernán Alejandro; Fainerman, Valentin B.; Ortega, Francisco; Rubio, Ramon G.; Ivanova, Natalia; Starov, Victor M.
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In the first part of this paper we presented experimental results, which shows the presence of surface aggregates in aqueous solutions of trisiloxane surfactants (Ritacco et al. [1]). Formation of those aggregates has been found for those trisiloxanes (T6, T7, T8, and T9), which show superspreading behaviour at room temperature. However, the formation of surface aggregates has not been detected for trisiloxanes (T4 and T5), which do not show superspreading behaviour at room temperature. It is shown that experimental results on equilibrium and dynamic interfacial tension agree well with a combined theoretical model, which is based on reorientation (or two states) and aggregation models. According to the reorientation model there are two states of trisiloxane molecules on the surface layer: molecules in those two states occupy different surface areas. The aggregation model was modified to account for specific properties of trisiloxane molecules. According to that model molecules occupying the lowest area on the interface can form two-dimensional aggregates. It was assumed that trisiloxane molecules include two kinetically independent trimethylsilyl [-O-Si(CH3)3] groups. This assumption allowed us to agree the aggregation theoretical model and experimental data on ellipsometric measurement of adsorption. © 2010 Elsevier B.V.
Fil: Ritacco, Hernán Alejandro. Universidad Complutense de Madrid; España
Fil: Fainerman, Valentin B.. Donetsk Medical University; Ucrania
Fil: Ortega, Francisco. Universidad Complutense de Madrid; España
Fil: Rubio, Ramon G.. Universidad Complutense de Madrid; España
Fil: Ivanova, Natalia. Loughborough University; Reino Unido
Fil: Starov, Victor M.. Loughborough University; Reino Unido
Materia
Aggregation
Equilibrium And Dynamic Surface Tension
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:11336/67381
Acceder
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spelling Equilibrium and dynamic surface properties of trisiloxane aqueous solutions. Part 2. Theory and comparison with experimentRitacco, Hernán AlejandroFainerman, Valentin B.Ortega, FranciscoRubio, Ramon G.Ivanova, NataliaStarov, Victor M.AggregationEquilibrium And Dynamic Surface Tensionhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1In the first part of this paper we presented experimental results, which shows the presence of surface aggregates in aqueous solutions of trisiloxane surfactants (Ritacco et al. [1]). Formation of those aggregates has been found for those trisiloxanes (T6, T7, T8, and T9), which show superspreading behaviour at room temperature. However, the formation of surface aggregates has not been detected for trisiloxanes (T4 and T5), which do not show superspreading behaviour at room temperature. It is shown that experimental results on equilibrium and dynamic interfacial tension agree well with a combined theoretical model, which is based on reorientation (or two states) and aggregation models. According to the reorientation model there are two states of trisiloxane molecules on the surface layer: molecules in those two states occupy different surface areas. The aggregation model was modified to account for specific properties of trisiloxane molecules. According to that model molecules occupying the lowest area on the interface can form two-dimensional aggregates. It was assumed that trisiloxane molecules include two kinetically independent trimethylsilyl [-O-Si(CH3)3] groups. This assumption allowed us to agree the aggregation theoretical model and experimental data on ellipsometric measurement of adsorption. © 2010 Elsevier B.V.Fil: Ritacco, Hernán Alejandro. Universidad Complutense de Madrid; EspañaFil: Fainerman, Valentin B.. Donetsk Medical University; UcraniaFil: Ortega, Francisco. Universidad Complutense de Madrid; EspañaFil: Rubio, Ramon G.. Universidad Complutense de Madrid; EspañaFil: Ivanova, Natalia. Loughborough University; Reino UnidoFil: Starov, Victor M.. Loughborough University; Reino UnidoElsevier Science2010-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/67381Ritacco, Hernán Alejandro; Fainerman, Valentin B.; Ortega, Francisco; Rubio, Ramon G.; Ivanova, Natalia; et al.; Equilibrium and dynamic surface properties of trisiloxane aqueous solutions. Part 2. Theory and comparison with experiment; Elsevier Science; Colloids and Surfaces A: Physicochemical and Engineering Aspects; 365; 1-3; 12-2010; 204-2090927-7757CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0927775710000762info:eu-repo/semantics/altIdentifier/doi/10.1016/j.colsurfa.2010.01.052info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:05:45Zoai:ri.conicet.gov.ar:11336/67381instacron: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 10:05:46.254CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Equilibrium and dynamic surface properties of trisiloxane aqueous solutions. Part 2. Theory and comparison with experiment
title Equilibrium and dynamic surface properties of trisiloxane aqueous solutions. Part 2. Theory and comparison with experiment
spellingShingle Equilibrium and dynamic surface properties of trisiloxane aqueous solutions. Part 2. Theory and comparison with experiment
Ritacco, Hernán Alejandro
Aggregation
Equilibrium And Dynamic Surface Tension
title_short Equilibrium and dynamic surface properties of trisiloxane aqueous solutions. Part 2. Theory and comparison with experiment
title_full Equilibrium and dynamic surface properties of trisiloxane aqueous solutions. Part 2. Theory and comparison with experiment
title_fullStr Equilibrium and dynamic surface properties of trisiloxane aqueous solutions. Part 2. Theory and comparison with experiment
title_full_unstemmed Equilibrium and dynamic surface properties of trisiloxane aqueous solutions. Part 2. Theory and comparison with experiment
title_sort Equilibrium and dynamic surface properties of trisiloxane aqueous solutions. Part 2. Theory and comparison with experiment
dc.creator.none.fl_str_mv Ritacco, Hernán Alejandro
Fainerman, Valentin B.
Ortega, Francisco
Rubio, Ramon G.
Ivanova, Natalia
Starov, Victor M.
author Ritacco, Hernán Alejandro
author_facet Ritacco, Hernán Alejandro
Fainerman, Valentin B.
Ortega, Francisco
Rubio, Ramon G.
Ivanova, Natalia
Starov, Victor M.
author_role author
author2 Fainerman, Valentin B.
Ortega, Francisco
Rubio, Ramon G.
Ivanova, Natalia
Starov, Victor M.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Aggregation
Equilibrium And Dynamic Surface Tension
topic Aggregation
Equilibrium And Dynamic Surface Tension
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 the first part of this paper we presented experimental results, which shows the presence of surface aggregates in aqueous solutions of trisiloxane surfactants (Ritacco et al. [1]). Formation of those aggregates has been found for those trisiloxanes (T6, T7, T8, and T9), which show superspreading behaviour at room temperature. However, the formation of surface aggregates has not been detected for trisiloxanes (T4 and T5), which do not show superspreading behaviour at room temperature. It is shown that experimental results on equilibrium and dynamic interfacial tension agree well with a combined theoretical model, which is based on reorientation (or two states) and aggregation models. According to the reorientation model there are two states of trisiloxane molecules on the surface layer: molecules in those two states occupy different surface areas. The aggregation model was modified to account for specific properties of trisiloxane molecules. According to that model molecules occupying the lowest area on the interface can form two-dimensional aggregates. It was assumed that trisiloxane molecules include two kinetically independent trimethylsilyl [-O-Si(CH3)3] groups. This assumption allowed us to agree the aggregation theoretical model and experimental data on ellipsometric measurement of adsorption. © 2010 Elsevier B.V.
Fil: Ritacco, Hernán Alejandro. Universidad Complutense de Madrid; España
Fil: Fainerman, Valentin B.. Donetsk Medical University; Ucrania
Fil: Ortega, Francisco. Universidad Complutense de Madrid; España
Fil: Rubio, Ramon G.. Universidad Complutense de Madrid; España
Fil: Ivanova, Natalia. Loughborough University; Reino Unido
Fil: Starov, Victor M.. Loughborough University; Reino Unido
description In the first part of this paper we presented experimental results, which shows the presence of surface aggregates in aqueous solutions of trisiloxane surfactants (Ritacco et al. [1]). Formation of those aggregates has been found for those trisiloxanes (T6, T7, T8, and T9), which show superspreading behaviour at room temperature. However, the formation of surface aggregates has not been detected for trisiloxanes (T4 and T5), which do not show superspreading behaviour at room temperature. It is shown that experimental results on equilibrium and dynamic interfacial tension agree well with a combined theoretical model, which is based on reorientation (or two states) and aggregation models. According to the reorientation model there are two states of trisiloxane molecules on the surface layer: molecules in those two states occupy different surface areas. The aggregation model was modified to account for specific properties of trisiloxane molecules. According to that model molecules occupying the lowest area on the interface can form two-dimensional aggregates. It was assumed that trisiloxane molecules include two kinetically independent trimethylsilyl [-O-Si(CH3)3] groups. This assumption allowed us to agree the aggregation theoretical model and experimental data on ellipsometric measurement of adsorption. © 2010 Elsevier B.V.
publishDate 2010
dc.date.none.fl_str_mv 2010-12
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/11336/67381
Ritacco, Hernán Alejandro; Fainerman, Valentin B.; Ortega, Francisco; Rubio, Ramon G.; Ivanova, Natalia; et al.; Equilibrium and dynamic surface properties of trisiloxane aqueous solutions. Part 2. Theory and comparison with experiment; Elsevier Science; Colloids and Surfaces A: Physicochemical and Engineering Aspects; 365; 1-3; 12-2010; 204-209
0927-7757
CONICET Digital
CONICET
url http://hdl.handle.net/11336/67381
identifier_str_mv Ritacco, Hernán Alejandro; Fainerman, Valentin B.; Ortega, Francisco; Rubio, Ramon G.; Ivanova, Natalia; et al.; Equilibrium and dynamic surface properties of trisiloxane aqueous solutions. Part 2. Theory and comparison with experiment; Elsevier Science; Colloids and Surfaces A: Physicochemical and Engineering Aspects; 365; 1-3; 12-2010; 204-209
0927-7757
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://www.sciencedirect.com/science/article/pii/S0927775710000762
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.colsurfa.2010.01.052
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
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv 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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