Critical wetting concentrations of trisiloxane surfactants
- Autores
- Ivanova, Natalia; Starov, Victor; Rubio, Ramon; Ritacco, Hernán Alejandro; Hilal, Nidal; Johnson, Daniel
- Año de publicación
- 2010
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Trisiloxane surfactants also known as "superspreaders" are characterized by a critical wetting concentration (CWC) which has been determined by Svitova et al [T. Svitova, R.M. Hill, Y. Smirnova, A. Stuermer, G. Yakubov, Langmuir 14 (1998) 5023-5031]. CWC is a concentration above which a transition from partial wetting to complete wetting occurs at spreading over moderately hydrophobic surfaces, hence, the CWC is associated with the beginning of the superspreading. The latter shows that the knowledge of the CWCs is important for many wetting/spreading applications. We suggest a new method, which allows determining CWCs for a range of trisiloxanes using wetting behaviour of aqueous trisiloxane solutions on highly hydrophobic smooth Teflon AF coated silicon wafers. Using the new method the CWCs for trisiloxane surfactants, Tn with a wide range in the number (n = 4-9) of ethylene oxide units have been measured. The critical aggregation concentration (CAC) for trisiloxane surfactants has been measured using the surface tension methods. Additionally, spreading kinetics of all trisiloxane surfactants studied over moderately hydrophobic substrates has been investigated. It has been found that for all trisiloxanes studied the CWCs are several times higher than their corresponding CAC values. The CWCs for T6 and T8 trisiloxanes obtained according to our approach are in agreement with those measured by Svitova et al. [T. Svitova, R.M. Hill, Y. Smirnova, A. Stuermer, G. Yakubov, Langmuir 14 (1998) 5023-5031] for the case of complete wetting. It has been verified that indeed at CWCs estimated according to our approach trisiloxane surfactant solutions demonstrate superspreading behaviour on moderately hydrophobic surfaces with the exception of trisiloxane T4, which still shows only partial wetting. Thus, the CWC does not depend on the degree of hydrophobicity of substrates and could be considered as a distinct property of surfactants that characterize the highest limit of their spreading capability. Crown Copyright © 2009.
Fil: Ivanova, Natalia. University Of Loughborough; Reino Unido
Fil: Starov, Victor. University Of Loughborough; Reino Unido
Fil: Rubio, Ramon. Universidad Complutense de Madrid; España
Fil: Ritacco, Hernán Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Complutense de Madrid; España
Fil: Hilal, Nidal. The University of Nottingham; Reino Unido
Fil: Johnson, Daniel. The University of Nottingham; Reino Unido - Materia
-
Critical Wetting Concentration
Spreading
Trisiloxane - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/67655
Ver los metadatos del registro completo
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Critical wetting concentrations of trisiloxane surfactantsIvanova, NataliaStarov, VictorRubio, RamonRitacco, Hernán AlejandroHilal, NidalJohnson, DanielCritical Wetting ConcentrationSpreadingTrisiloxanehttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Trisiloxane surfactants also known as "superspreaders" are characterized by a critical wetting concentration (CWC) which has been determined by Svitova et al [T. Svitova, R.M. Hill, Y. Smirnova, A. Stuermer, G. Yakubov, Langmuir 14 (1998) 5023-5031]. CWC is a concentration above which a transition from partial wetting to complete wetting occurs at spreading over moderately hydrophobic surfaces, hence, the CWC is associated with the beginning of the superspreading. The latter shows that the knowledge of the CWCs is important for many wetting/spreading applications. We suggest a new method, which allows determining CWCs for a range of trisiloxanes using wetting behaviour of aqueous trisiloxane solutions on highly hydrophobic smooth Teflon AF coated silicon wafers. Using the new method the CWCs for trisiloxane surfactants, Tn with a wide range in the number (n = 4-9) of ethylene oxide units have been measured. The critical aggregation concentration (CAC) for trisiloxane surfactants has been measured using the surface tension methods. Additionally, spreading kinetics of all trisiloxane surfactants studied over moderately hydrophobic substrates has been investigated. It has been found that for all trisiloxanes studied the CWCs are several times higher than their corresponding CAC values. The CWCs for T6 and T8 trisiloxanes obtained according to our approach are in agreement with those measured by Svitova et al. [T. Svitova, R.M. Hill, Y. Smirnova, A. Stuermer, G. Yakubov, Langmuir 14 (1998) 5023-5031] for the case of complete wetting. It has been verified that indeed at CWCs estimated according to our approach trisiloxane surfactant solutions demonstrate superspreading behaviour on moderately hydrophobic surfaces with the exception of trisiloxane T4, which still shows only partial wetting. Thus, the CWC does not depend on the degree of hydrophobicity of substrates and could be considered as a distinct property of surfactants that characterize the highest limit of their spreading capability. Crown Copyright © 2009.Fil: Ivanova, Natalia. University Of Loughborough; Reino UnidoFil: Starov, Victor. University Of Loughborough; Reino UnidoFil: Rubio, Ramon. Universidad Complutense de Madrid; EspañaFil: Ritacco, Hernán Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Complutense de Madrid; EspañaFil: Hilal, Nidal. The University of Nottingham; Reino UnidoFil: Johnson, Daniel. The University of Nottingham; Reino UnidoElsevier Science2010-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/67655Ivanova, Natalia; Starov, Victor; Rubio, Ramon; Ritacco, Hernán Alejandro; Hilal, Nidal; et al.; Critical wetting concentrations of trisiloxane surfactants; Elsevier Science; Colloids and Surfaces A: Physicochemical and Engineering Aspects; 354; 1-3; 2-2010; 143-1480927-7757CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S092777570900449Xinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.colsurfa.2009.07.030info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:47:38Zoai:ri.conicet.gov.ar:11336/67655instacron: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 10:47:39.063CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Critical wetting concentrations of trisiloxane surfactants |
title |
Critical wetting concentrations of trisiloxane surfactants |
spellingShingle |
Critical wetting concentrations of trisiloxane surfactants Ivanova, Natalia Critical Wetting Concentration Spreading Trisiloxane |
title_short |
Critical wetting concentrations of trisiloxane surfactants |
title_full |
Critical wetting concentrations of trisiloxane surfactants |
title_fullStr |
Critical wetting concentrations of trisiloxane surfactants |
title_full_unstemmed |
Critical wetting concentrations of trisiloxane surfactants |
title_sort |
Critical wetting concentrations of trisiloxane surfactants |
dc.creator.none.fl_str_mv |
Ivanova, Natalia Starov, Victor Rubio, Ramon Ritacco, Hernán Alejandro Hilal, Nidal Johnson, Daniel |
author |
Ivanova, Natalia |
author_facet |
Ivanova, Natalia Starov, Victor Rubio, Ramon Ritacco, Hernán Alejandro Hilal, Nidal Johnson, Daniel |
author_role |
author |
author2 |
Starov, Victor Rubio, Ramon Ritacco, Hernán Alejandro Hilal, Nidal Johnson, Daniel |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
Critical Wetting Concentration Spreading Trisiloxane |
topic |
Critical Wetting Concentration Spreading Trisiloxane |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.4 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Trisiloxane surfactants also known as "superspreaders" are characterized by a critical wetting concentration (CWC) which has been determined by Svitova et al [T. Svitova, R.M. Hill, Y. Smirnova, A. Stuermer, G. Yakubov, Langmuir 14 (1998) 5023-5031]. CWC is a concentration above which a transition from partial wetting to complete wetting occurs at spreading over moderately hydrophobic surfaces, hence, the CWC is associated with the beginning of the superspreading. The latter shows that the knowledge of the CWCs is important for many wetting/spreading applications. We suggest a new method, which allows determining CWCs for a range of trisiloxanes using wetting behaviour of aqueous trisiloxane solutions on highly hydrophobic smooth Teflon AF coated silicon wafers. Using the new method the CWCs for trisiloxane surfactants, Tn with a wide range in the number (n = 4-9) of ethylene oxide units have been measured. The critical aggregation concentration (CAC) for trisiloxane surfactants has been measured using the surface tension methods. Additionally, spreading kinetics of all trisiloxane surfactants studied over moderately hydrophobic substrates has been investigated. It has been found that for all trisiloxanes studied the CWCs are several times higher than their corresponding CAC values. The CWCs for T6 and T8 trisiloxanes obtained according to our approach are in agreement with those measured by Svitova et al. [T. Svitova, R.M. Hill, Y. Smirnova, A. Stuermer, G. Yakubov, Langmuir 14 (1998) 5023-5031] for the case of complete wetting. It has been verified that indeed at CWCs estimated according to our approach trisiloxane surfactant solutions demonstrate superspreading behaviour on moderately hydrophobic surfaces with the exception of trisiloxane T4, which still shows only partial wetting. Thus, the CWC does not depend on the degree of hydrophobicity of substrates and could be considered as a distinct property of surfactants that characterize the highest limit of their spreading capability. Crown Copyright © 2009. Fil: Ivanova, Natalia. University Of Loughborough; Reino Unido Fil: Starov, Victor. University Of Loughborough; Reino Unido Fil: Rubio, Ramon. Universidad Complutense de Madrid; España Fil: Ritacco, Hernán Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Complutense de Madrid; España Fil: Hilal, Nidal. The University of Nottingham; Reino Unido Fil: Johnson, Daniel. The University of Nottingham; Reino Unido |
description |
Trisiloxane surfactants also known as "superspreaders" are characterized by a critical wetting concentration (CWC) which has been determined by Svitova et al [T. Svitova, R.M. Hill, Y. Smirnova, A. Stuermer, G. Yakubov, Langmuir 14 (1998) 5023-5031]. CWC is a concentration above which a transition from partial wetting to complete wetting occurs at spreading over moderately hydrophobic surfaces, hence, the CWC is associated with the beginning of the superspreading. The latter shows that the knowledge of the CWCs is important for many wetting/spreading applications. We suggest a new method, which allows determining CWCs for a range of trisiloxanes using wetting behaviour of aqueous trisiloxane solutions on highly hydrophobic smooth Teflon AF coated silicon wafers. Using the new method the CWCs for trisiloxane surfactants, Tn with a wide range in the number (n = 4-9) of ethylene oxide units have been measured. The critical aggregation concentration (CAC) for trisiloxane surfactants has been measured using the surface tension methods. Additionally, spreading kinetics of all trisiloxane surfactants studied over moderately hydrophobic substrates has been investigated. It has been found that for all trisiloxanes studied the CWCs are several times higher than their corresponding CAC values. The CWCs for T6 and T8 trisiloxanes obtained according to our approach are in agreement with those measured by Svitova et al. [T. Svitova, R.M. Hill, Y. Smirnova, A. Stuermer, G. Yakubov, Langmuir 14 (1998) 5023-5031] for the case of complete wetting. It has been verified that indeed at CWCs estimated according to our approach trisiloxane surfactant solutions demonstrate superspreading behaviour on moderately hydrophobic surfaces with the exception of trisiloxane T4, which still shows only partial wetting. Thus, the CWC does not depend on the degree of hydrophobicity of substrates and could be considered as a distinct property of surfactants that characterize the highest limit of their spreading capability. Crown Copyright © 2009. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-02 |
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/11336/67655 Ivanova, Natalia; Starov, Victor; Rubio, Ramon; Ritacco, Hernán Alejandro; Hilal, Nidal; et al.; Critical wetting concentrations of trisiloxane surfactants; Elsevier Science; Colloids and Surfaces A: Physicochemical and Engineering Aspects; 354; 1-3; 2-2010; 143-148 0927-7757 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/67655 |
identifier_str_mv |
Ivanova, Natalia; Starov, Victor; Rubio, Ramon; Ritacco, Hernán Alejandro; Hilal, Nidal; et al.; Critical wetting concentrations of trisiloxane surfactants; Elsevier Science; Colloids and Surfaces A: Physicochemical and Engineering Aspects; 354; 1-3; 2-2010; 143-148 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/S092777570900449X info:eu-repo/semantics/altIdentifier/doi/10.1016/j.colsurfa.2009.07.030 |
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 |
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 |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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13.070432 |