Surface rheology: Macro- and microrheology of poly(tert-butyl acrylate) monolayers

Autores
Maestro, Armando; Bonales, Laura J.; Ritacco, Hernán Alejandro; Fischer, Thomas; Rubio, Ramón G.; Ortega, Francisco
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We have studied the surface shear viscoelasticity of poly(tert-butyl- acrylate) Langmuir monolayers spread at the air/water interface, by tracking the Brownian motion of tracer particles with different sizes and surface chemical nature, trapped at the same interface. Surface shear moduli have been extracted from the particles mean square displacements (MSD), using different approaches: hydrodynamic calculations of drag coefficients and direct inversion of the MSD by means of the generalized Stokes-Einstein equation. It has been found that these different theoretical approaches lead to comparable values of the shear interfacial viscosity independent of the polymer concentration and molecular weight. In addition, no effect of the size or chemical nature of the probe has been detected. The results have demonstrated the consistency of the microrheological techniques used, and confirm the existence of entanglements in PtBA monolayers, as recently deduced from dilational elasticity and viscosity measurements, [Maestro et al., Soft Matter, 2010, 6, 4407]. An unexpected result was that the interfacial viscosity values obtained from microrheology have been found to be several orders of magnitude lower than the ones obtained with macroscopic interfacial shear rheometers. At the moment there is no clear explanation for this disagreement, although it is not related to the probe size or their chemical nature. Furthermore, this discrepancy is not related to the analysis methodology used, including the calculation of the two-point correlation function used in 3D microrheology when there are heterogeneities present within the range of the probe size. © The Royal Society of Chemistry 2011.
Fil: Maestro, Armando. Universidad Complutense de Madrid; España
Fil: Bonales, Laura J.. Universidad Complutense de Madrid; España
Fil: Ritacco, Hernán Alejandro. Universidad Complutense de Madrid; España. 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: Fischer, Thomas. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. University of Bayreuth; Alemania
Fil: Rubio, Ramón G.. Universidad Complutense de Madrid; España
Fil: Ortega, Francisco. Universidad Complutense de Madrid; España
Materia
Surface Rheology
Polymers
2d Glass Transitions
Particle Tracking
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:11336/66429
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/66429
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Surface rheology: Macro- and microrheology of poly(tert-butyl acrylate) monolayersMaestro, ArmandoBonales, Laura J.Ritacco, Hernán AlejandroFischer, ThomasRubio, Ramón G.Ortega, FranciscoSurface RheologyPolymers2d Glass TransitionsParticle Trackinghttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We have studied the surface shear viscoelasticity of poly(tert-butyl- acrylate) Langmuir monolayers spread at the air/water interface, by tracking the Brownian motion of tracer particles with different sizes and surface chemical nature, trapped at the same interface. Surface shear moduli have been extracted from the particles mean square displacements (MSD), using different approaches: hydrodynamic calculations of drag coefficients and direct inversion of the MSD by means of the generalized Stokes-Einstein equation. It has been found that these different theoretical approaches lead to comparable values of the shear interfacial viscosity independent of the polymer concentration and molecular weight. In addition, no effect of the size or chemical nature of the probe has been detected. The results have demonstrated the consistency of the microrheological techniques used, and confirm the existence of entanglements in PtBA monolayers, as recently deduced from dilational elasticity and viscosity measurements, [Maestro et al., Soft Matter, 2010, 6, 4407]. An unexpected result was that the interfacial viscosity values obtained from microrheology have been found to be several orders of magnitude lower than the ones obtained with macroscopic interfacial shear rheometers. At the moment there is no clear explanation for this disagreement, although it is not related to the probe size or their chemical nature. Furthermore, this discrepancy is not related to the analysis methodology used, including the calculation of the two-point correlation function used in 3D microrheology when there are heterogeneities present within the range of the probe size. © The Royal Society of Chemistry 2011.Fil: Maestro, Armando. Universidad Complutense de Madrid; EspañaFil: Bonales, Laura J.. Universidad Complutense de Madrid; EspañaFil: Ritacco, Hernán Alejandro. Universidad Complutense de Madrid; España. 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: Fischer, Thomas. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. University of Bayreuth; AlemaniaFil: Rubio, Ramón G.. Universidad Complutense de Madrid; EspañaFil: Ortega, Francisco. Universidad Complutense de Madrid; EspañaRoyal Society of Chemistry2011-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/66429Maestro, Armando; Bonales, Laura J.; Ritacco, Hernán Alejandro; Fischer, Thomas; Rubio, Ramón G.; et al.; Surface rheology: Macro- and microrheology of poly(tert-butyl acrylate) monolayers; Royal Society of Chemistry; Soft Matter; 7; 17; 9-2011; 7761-77711744-683X1744-6848CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://pubs.rsc.org/en/content/articlelanding/2011/sm/c1sm05225jinfo:eu-repo/semantics/altIdentifier/doi/10.1039/c1sm05225jinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:23:09Zoai:ri.conicet.gov.ar:11336/66429instacron: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 10:23:09.332CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Surface rheology: Macro- and microrheology of poly(tert-butyl acrylate) monolayers
title Surface rheology: Macro- and microrheology of poly(tert-butyl acrylate) monolayers
spellingShingle Surface rheology: Macro- and microrheology of poly(tert-butyl acrylate) monolayers
Maestro, Armando
Surface Rheology
Polymers
2d Glass Transitions
Particle Tracking
title_short Surface rheology: Macro- and microrheology of poly(tert-butyl acrylate) monolayers
title_full Surface rheology: Macro- and microrheology of poly(tert-butyl acrylate) monolayers
title_fullStr Surface rheology: Macro- and microrheology of poly(tert-butyl acrylate) monolayers
title_full_unstemmed Surface rheology: Macro- and microrheology of poly(tert-butyl acrylate) monolayers
title_sort Surface rheology: Macro- and microrheology of poly(tert-butyl acrylate) monolayers
dc.creator.none.fl_str_mv Maestro, Armando
Bonales, Laura J.
Ritacco, Hernán Alejandro
Fischer, Thomas
Rubio, Ramón G.
Ortega, Francisco
author Maestro, Armando
author_facet Maestro, Armando
Bonales, Laura J.
Ritacco, Hernán Alejandro
Fischer, Thomas
Rubio, Ramón G.
Ortega, Francisco
author_role author
author2 Bonales, Laura J.
Ritacco, Hernán Alejandro
Fischer, Thomas
Rubio, Ramón G.
Ortega, Francisco
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Surface Rheology
Polymers
2d Glass Transitions
Particle Tracking
topic Surface Rheology
Polymers
2d Glass Transitions
Particle Tracking
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We have studied the surface shear viscoelasticity of poly(tert-butyl- acrylate) Langmuir monolayers spread at the air/water interface, by tracking the Brownian motion of tracer particles with different sizes and surface chemical nature, trapped at the same interface. Surface shear moduli have been extracted from the particles mean square displacements (MSD), using different approaches: hydrodynamic calculations of drag coefficients and direct inversion of the MSD by means of the generalized Stokes-Einstein equation. It has been found that these different theoretical approaches lead to comparable values of the shear interfacial viscosity independent of the polymer concentration and molecular weight. In addition, no effect of the size or chemical nature of the probe has been detected. The results have demonstrated the consistency of the microrheological techniques used, and confirm the existence of entanglements in PtBA monolayers, as recently deduced from dilational elasticity and viscosity measurements, [Maestro et al., Soft Matter, 2010, 6, 4407]. An unexpected result was that the interfacial viscosity values obtained from microrheology have been found to be several orders of magnitude lower than the ones obtained with macroscopic interfacial shear rheometers. At the moment there is no clear explanation for this disagreement, although it is not related to the probe size or their chemical nature. Furthermore, this discrepancy is not related to the analysis methodology used, including the calculation of the two-point correlation function used in 3D microrheology when there are heterogeneities present within the range of the probe size. © The Royal Society of Chemistry 2011.
Fil: Maestro, Armando. Universidad Complutense de Madrid; España
Fil: Bonales, Laura J.. Universidad Complutense de Madrid; España
Fil: Ritacco, Hernán Alejandro. Universidad Complutense de Madrid; España. 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: Fischer, Thomas. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. University of Bayreuth; Alemania
Fil: Rubio, Ramón G.. Universidad Complutense de Madrid; España
Fil: Ortega, Francisco. Universidad Complutense de Madrid; España
description We have studied the surface shear viscoelasticity of poly(tert-butyl- acrylate) Langmuir monolayers spread at the air/water interface, by tracking the Brownian motion of tracer particles with different sizes and surface chemical nature, trapped at the same interface. Surface shear moduli have been extracted from the particles mean square displacements (MSD), using different approaches: hydrodynamic calculations of drag coefficients and direct inversion of the MSD by means of the generalized Stokes-Einstein equation. It has been found that these different theoretical approaches lead to comparable values of the shear interfacial viscosity independent of the polymer concentration and molecular weight. In addition, no effect of the size or chemical nature of the probe has been detected. The results have demonstrated the consistency of the microrheological techniques used, and confirm the existence of entanglements in PtBA monolayers, as recently deduced from dilational elasticity and viscosity measurements, [Maestro et al., Soft Matter, 2010, 6, 4407]. An unexpected result was that the interfacial viscosity values obtained from microrheology have been found to be several orders of magnitude lower than the ones obtained with macroscopic interfacial shear rheometers. At the moment there is no clear explanation for this disagreement, although it is not related to the probe size or their chemical nature. Furthermore, this discrepancy is not related to the analysis methodology used, including the calculation of the two-point correlation function used in 3D microrheology when there are heterogeneities present within the range of the probe size. © The Royal Society of Chemistry 2011.
publishDate 2011
dc.date.none.fl_str_mv 2011-09
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/11336/66429
Maestro, Armando; Bonales, Laura J.; Ritacco, Hernán Alejandro; Fischer, Thomas; Rubio, Ramón G.; et al.; Surface rheology: Macro- and microrheology of poly(tert-butyl acrylate) monolayers; Royal Society of Chemistry; Soft Matter; 7; 17; 9-2011; 7761-7771
1744-683X
1744-6848
CONICET Digital
CONICET
url http://hdl.handle.net/11336/66429
identifier_str_mv Maestro, Armando; Bonales, Laura J.; Ritacco, Hernán Alejandro; Fischer, Thomas; Rubio, Ramón G.; et al.; Surface rheology: Macro- and microrheology of poly(tert-butyl acrylate) monolayers; Royal Society of Chemistry; Soft Matter; 7; 17; 9-2011; 7761-7771
1744-683X
1744-6848
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.rsc.org/en/content/articlelanding/2011/sm/c1sm05225j
info:eu-repo/semantics/altIdentifier/doi/10.1039/c1sm05225j
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 Royal Society of Chemistry
publisher.none.fl_str_mv Royal Society of Chemistry
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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