Adsorption Kinetics of a Cationic Surfactant Bearing a Two-Charged Head at the Air-Water Interface

Autores
Fernández Leyes, Marcos Daniel; Gimenez Reyes, Santiago Alberto; Cuenca, Victor Ezequiel; Sánchez Morales, Jhon Freddy; Ritacco, Hernán Alejandro
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We studied the dynamics of adsorption at the air-water interface of a cationic surfactant bearing two charges, Gemini 12-2-12, at concentrations below and above the critical micelle concentration (cmc). We used maximum bubble pressure and Wilhelmy plate techniques in order to access all time scales in the adsorption process. We found that the adsorption dynamics are controlled by diffusion at the initial stage of the adsorption process (milliseconds) and it is kinetically controlled by an electrostatic barrier (minute) approaching the equilibrium surfactant surface concentration. Between these two extremes, we found several relaxation phenomena, all following exponential decays with characteristic times spanning from one to hundreds of seconds. By means of time-resolved surface potential measurements, we show that these processes involve charge redistribution within the interfacial region. The surface tension data are analyzed and interpreted in the framework of the free energy approach.
Fil: Fernández Leyes, Marcos Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Fil: Gimenez Reyes, Santiago Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Fil: Cuenca, Victor Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Fil: Sánchez Morales, Jhon Freddy. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Fil: Ritacco, Hernán Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Materia
CATIONIC SURFACTANTS
DYNAMIC SURFACE TENSION
GEMINI 12-2-12 SURFACTANT
MAXIMUM BUBBLE PRESSURE
SURFACE POTENTIAL
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/143305
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/143305
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Adsorption Kinetics of a Cationic Surfactant Bearing a Two-Charged Head at the Air-Water InterfaceFernández Leyes, Marcos DanielGimenez Reyes, Santiago AlbertoCuenca, Victor EzequielSánchez Morales, Jhon FreddyRitacco, Hernán AlejandroCATIONIC SURFACTANTSDYNAMIC SURFACE TENSIONGEMINI 12-2-12 SURFACTANTMAXIMUM BUBBLE PRESSURESURFACE POTENTIALhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We studied the dynamics of adsorption at the air-water interface of a cationic surfactant bearing two charges, Gemini 12-2-12, at concentrations below and above the critical micelle concentration (cmc). We used maximum bubble pressure and Wilhelmy plate techniques in order to access all time scales in the adsorption process. We found that the adsorption dynamics are controlled by diffusion at the initial stage of the adsorption process (milliseconds) and it is kinetically controlled by an electrostatic barrier (minute) approaching the equilibrium surfactant surface concentration. Between these two extremes, we found several relaxation phenomena, all following exponential decays with characteristic times spanning from one to hundreds of seconds. By means of time-resolved surface potential measurements, we show that these processes involve charge redistribution within the interfacial region. The surface tension data are analyzed and interpreted in the framework of the free energy approach.Fil: Fernández Leyes, Marcos Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; ArgentinaFil: Gimenez Reyes, Santiago Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; ArgentinaFil: Cuenca, Victor Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; ArgentinaFil: Sánchez Morales, Jhon Freddy. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; ArgentinaFil: Ritacco, Hernán Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; ArgentinaMDPI AG2020-01-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/143305Fernández Leyes, Marcos Daniel; Gimenez Reyes, Santiago Alberto; Cuenca, Victor Ezequiel; Sánchez Morales, Jhon Freddy; Ritacco, Hernán Alejandro; Adsorption Kinetics of a Cationic Surfactant Bearing a Two-Charged Head at the Air-Water Interface; MDPI AG; Coatings; 10; 2; 22-1-2020; 1-172079-6412CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2079-6412/10/2/95info:eu-repo/semantics/altIdentifier/doi/10.3390/coatings10020095info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:08:46Zoai:ri.conicet.gov.ar:11336/143305instacron: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:34982025-10-22 12:08:46.515CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Adsorption Kinetics of a Cationic Surfactant Bearing a Two-Charged Head at the Air-Water Interface
title Adsorption Kinetics of a Cationic Surfactant Bearing a Two-Charged Head at the Air-Water Interface
spellingShingle Adsorption Kinetics of a Cationic Surfactant Bearing a Two-Charged Head at the Air-Water Interface
Fernández Leyes, Marcos Daniel
CATIONIC SURFACTANTS
DYNAMIC SURFACE TENSION
GEMINI 12-2-12 SURFACTANT
MAXIMUM BUBBLE PRESSURE
SURFACE POTENTIAL
title_short Adsorption Kinetics of a Cationic Surfactant Bearing a Two-Charged Head at the Air-Water Interface
title_full Adsorption Kinetics of a Cationic Surfactant Bearing a Two-Charged Head at the Air-Water Interface
title_fullStr Adsorption Kinetics of a Cationic Surfactant Bearing a Two-Charged Head at the Air-Water Interface
title_full_unstemmed Adsorption Kinetics of a Cationic Surfactant Bearing a Two-Charged Head at the Air-Water Interface
title_sort Adsorption Kinetics of a Cationic Surfactant Bearing a Two-Charged Head at the Air-Water Interface
dc.creator.none.fl_str_mv Fernández Leyes, Marcos Daniel
Gimenez Reyes, Santiago Alberto
Cuenca, Victor Ezequiel
Sánchez Morales, Jhon Freddy
Ritacco, Hernán Alejandro
author Fernández Leyes, Marcos Daniel
author_facet Fernández Leyes, Marcos Daniel
Gimenez Reyes, Santiago Alberto
Cuenca, Victor Ezequiel
Sánchez Morales, Jhon Freddy
Ritacco, Hernán Alejandro
author_role author
author2 Gimenez Reyes, Santiago Alberto
Cuenca, Victor Ezequiel
Sánchez Morales, Jhon Freddy
Ritacco, Hernán Alejandro
author2_role author
author
author
author
dc.subject.none.fl_str_mv CATIONIC SURFACTANTS
DYNAMIC SURFACE TENSION
GEMINI 12-2-12 SURFACTANT
MAXIMUM BUBBLE PRESSURE
SURFACE POTENTIAL
topic CATIONIC SURFACTANTS
DYNAMIC SURFACE TENSION
GEMINI 12-2-12 SURFACTANT
MAXIMUM BUBBLE PRESSURE
SURFACE POTENTIAL
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We studied the dynamics of adsorption at the air-water interface of a cationic surfactant bearing two charges, Gemini 12-2-12, at concentrations below and above the critical micelle concentration (cmc). We used maximum bubble pressure and Wilhelmy plate techniques in order to access all time scales in the adsorption process. We found that the adsorption dynamics are controlled by diffusion at the initial stage of the adsorption process (milliseconds) and it is kinetically controlled by an electrostatic barrier (minute) approaching the equilibrium surfactant surface concentration. Between these two extremes, we found several relaxation phenomena, all following exponential decays with characteristic times spanning from one to hundreds of seconds. By means of time-resolved surface potential measurements, we show that these processes involve charge redistribution within the interfacial region. The surface tension data are analyzed and interpreted in the framework of the free energy approach.
Fil: Fernández Leyes, Marcos Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Fil: Gimenez Reyes, Santiago Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Fil: Cuenca, Victor Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Fil: Sánchez Morales, Jhon Freddy. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Fil: Ritacco, Hernán Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
description We studied the dynamics of adsorption at the air-water interface of a cationic surfactant bearing two charges, Gemini 12-2-12, at concentrations below and above the critical micelle concentration (cmc). We used maximum bubble pressure and Wilhelmy plate techniques in order to access all time scales in the adsorption process. We found that the adsorption dynamics are controlled by diffusion at the initial stage of the adsorption process (milliseconds) and it is kinetically controlled by an electrostatic barrier (minute) approaching the equilibrium surfactant surface concentration. Between these two extremes, we found several relaxation phenomena, all following exponential decays with characteristic times spanning from one to hundreds of seconds. By means of time-resolved surface potential measurements, we show that these processes involve charge redistribution within the interfacial region. The surface tension data are analyzed and interpreted in the framework of the free energy approach.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-22
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/11336/143305
Fernández Leyes, Marcos Daniel; Gimenez Reyes, Santiago Alberto; Cuenca, Victor Ezequiel; Sánchez Morales, Jhon Freddy; Ritacco, Hernán Alejandro; Adsorption Kinetics of a Cationic Surfactant Bearing a Two-Charged Head at the Air-Water Interface; MDPI AG; Coatings; 10; 2; 22-1-2020; 1-17
2079-6412
CONICET Digital
CONICET
url http://hdl.handle.net/11336/143305
identifier_str_mv Fernández Leyes, Marcos Daniel; Gimenez Reyes, Santiago Alberto; Cuenca, Victor Ezequiel; Sánchez Morales, Jhon Freddy; Ritacco, Hernán Alejandro; Adsorption Kinetics of a Cationic Surfactant Bearing a Two-Charged Head at the Air-Water Interface; MDPI AG; Coatings; 10; 2; 22-1-2020; 1-17
2079-6412
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.mdpi.com/2079-6412/10/2/95
info:eu-repo/semantics/altIdentifier/doi/10.3390/coatings10020095
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv MDPI AG
publisher.none.fl_str_mv MDPI AG
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
_version_ 1846782461293363200
score 12.982451

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