Frictional forces between strongly compressed, nonentangled polymer brushes: Molecular dynamics simulations and scaling theory

Autores
Galuschko, A.; Spirin, L.; Kreer, T.; Johner, A.; Pastorino, Claudio; Wittmer, J.; Baschnagel, J.
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
By means of molecular dynamics simulations and scaling theory we study the response of opposing polymer brushes to constant shear motion under good solvent conditions. Model systems that contain explicit solvent molecules (Lennard-Jones dimers) are compared to solvent-free systems while varying of the distance between the grafted layers and their molecular parameters, chain length and grafting density. Our study reveals a power-law dependence of macroscopic transport properties on the Weissenberg number, W, beyond linear response. For instance, we find that the kinetic friction constant scales as μ ∼ W0.57 for large values of W. We develop a scaling theory that describes our data and previous numerical data including recent experiments. © 2010 American Chemical Society.
Fil: Galuschko, A.. Institut Charles Sadron; Francia
Fil: Spirin, L.. Johannes Gutenberg Universitat Mainz; Alemania
Fil: Kreer, T.. Institut Charles Sadron; Francia
Fil: Johner, A.. Institut Charles Sadron; Francia
Fil: Pastorino, Claudio. Comisión Nacional de Energía Atómica. Gerencia del Área de Investigaciones y Aplicaciones no Nucleares. Gerencia de Física (Centro Atómico Constituyentes); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Wittmer, J.. Institut Charles Sadron; Francia
Fil: Baschnagel, J.. Institut Charles Sadron; Francia
Materia
POLYMER
BRUSHES
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:11336/98863
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Frictional forces between strongly compressed, nonentangled polymer brushes: Molecular dynamics simulations and scaling theoryGaluschko, A.Spirin, L.Kreer, T.Johner, A.Pastorino, ClaudioWittmer, J.Baschnagel, J.POLYMERBRUSHEShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1By means of molecular dynamics simulations and scaling theory we study the response of opposing polymer brushes to constant shear motion under good solvent conditions. Model systems that contain explicit solvent molecules (Lennard-Jones dimers) are compared to solvent-free systems while varying of the distance between the grafted layers and their molecular parameters, chain length and grafting density. Our study reveals a power-law dependence of macroscopic transport properties on the Weissenberg number, W, beyond linear response. For instance, we find that the kinetic friction constant scales as μ ∼ W0.57 for large values of W. We develop a scaling theory that describes our data and previous numerical data including recent experiments. © 2010 American Chemical Society.Fil: Galuschko, A.. Institut Charles Sadron; FranciaFil: Spirin, L.. Johannes Gutenberg Universitat Mainz; AlemaniaFil: Kreer, T.. Institut Charles Sadron; FranciaFil: Johner, A.. Institut Charles Sadron; FranciaFil: Pastorino, Claudio. Comisión Nacional de Energía Atómica. Gerencia del Área de Investigaciones y Aplicaciones no Nucleares. Gerencia de Física (Centro Atómico Constituyentes); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Wittmer, J.. Institut Charles Sadron; FranciaFil: Baschnagel, J.. Institut Charles Sadron; FranciaAmerican Chemical Society2010-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/98863Galuschko, A.; Spirin, L.; Kreer, T.; Johner, A.; Pastorino, Claudio; et al.; Frictional forces between strongly compressed, nonentangled polymer brushes: Molecular dynamics simulations and scaling theory; American Chemical Society; Langmuir; 26; 9; 5-2010; 6418-64290743-7463CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/la904119cinfo:eu-repo/semantics/altIdentifier/doi/10.1021/la904119cinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:21:02Zoai:ri.conicet.gov.ar:11336/98863instacron: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 10:21:03.061CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Frictional forces between strongly compressed, nonentangled polymer brushes: Molecular dynamics simulations and scaling theory
title Frictional forces between strongly compressed, nonentangled polymer brushes: Molecular dynamics simulations and scaling theory
spellingShingle Frictional forces between strongly compressed, nonentangled polymer brushes: Molecular dynamics simulations and scaling theory
Galuschko, A.
POLYMER
BRUSHES
title_short Frictional forces between strongly compressed, nonentangled polymer brushes: Molecular dynamics simulations and scaling theory
title_full Frictional forces between strongly compressed, nonentangled polymer brushes: Molecular dynamics simulations and scaling theory
title_fullStr Frictional forces between strongly compressed, nonentangled polymer brushes: Molecular dynamics simulations and scaling theory
title_full_unstemmed Frictional forces between strongly compressed, nonentangled polymer brushes: Molecular dynamics simulations and scaling theory
title_sort Frictional forces between strongly compressed, nonentangled polymer brushes: Molecular dynamics simulations and scaling theory
dc.creator.none.fl_str_mv Galuschko, A.
Spirin, L.
Kreer, T.
Johner, A.
Pastorino, Claudio
Wittmer, J.
Baschnagel, J.
author Galuschko, A.
author_facet Galuschko, A.
Spirin, L.
Kreer, T.
Johner, A.
Pastorino, Claudio
Wittmer, J.
Baschnagel, J.
author_role author
author2 Spirin, L.
Kreer, T.
Johner, A.
Pastorino, Claudio
Wittmer, J.
Baschnagel, J.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv POLYMER
BRUSHES
topic POLYMER
BRUSHES
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv By means of molecular dynamics simulations and scaling theory we study the response of opposing polymer brushes to constant shear motion under good solvent conditions. Model systems that contain explicit solvent molecules (Lennard-Jones dimers) are compared to solvent-free systems while varying of the distance between the grafted layers and their molecular parameters, chain length and grafting density. Our study reveals a power-law dependence of macroscopic transport properties on the Weissenberg number, W, beyond linear response. For instance, we find that the kinetic friction constant scales as μ ∼ W0.57 for large values of W. We develop a scaling theory that describes our data and previous numerical data including recent experiments. © 2010 American Chemical Society.
Fil: Galuschko, A.. Institut Charles Sadron; Francia
Fil: Spirin, L.. Johannes Gutenberg Universitat Mainz; Alemania
Fil: Kreer, T.. Institut Charles Sadron; Francia
Fil: Johner, A.. Institut Charles Sadron; Francia
Fil: Pastorino, Claudio. Comisión Nacional de Energía Atómica. Gerencia del Área de Investigaciones y Aplicaciones no Nucleares. Gerencia de Física (Centro Atómico Constituyentes); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Wittmer, J.. Institut Charles Sadron; Francia
Fil: Baschnagel, J.. Institut Charles Sadron; Francia
description By means of molecular dynamics simulations and scaling theory we study the response of opposing polymer brushes to constant shear motion under good solvent conditions. Model systems that contain explicit solvent molecules (Lennard-Jones dimers) are compared to solvent-free systems while varying of the distance between the grafted layers and their molecular parameters, chain length and grafting density. Our study reveals a power-law dependence of macroscopic transport properties on the Weissenberg number, W, beyond linear response. For instance, we find that the kinetic friction constant scales as μ ∼ W0.57 for large values of W. We develop a scaling theory that describes our data and previous numerical data including recent experiments. © 2010 American Chemical Society.
publishDate 2010
dc.date.none.fl_str_mv 2010-05
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/11336/98863
Galuschko, A.; Spirin, L.; Kreer, T.; Johner, A.; Pastorino, Claudio; et al.; Frictional forces between strongly compressed, nonentangled polymer brushes: Molecular dynamics simulations and scaling theory; American Chemical Society; Langmuir; 26; 9; 5-2010; 6418-6429
0743-7463
CONICET Digital
CONICET
url http://hdl.handle.net/11336/98863
identifier_str_mv Galuschko, A.; Spirin, L.; Kreer, T.; Johner, A.; Pastorino, Claudio; et al.; Frictional forces between strongly compressed, nonentangled polymer brushes: Molecular dynamics simulations and scaling theory; American Chemical Society; Langmuir; 26; 9; 5-2010; 6418-6429
0743-7463
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/abs/10.1021/la904119c
info:eu-repo/semantics/altIdentifier/doi/10.1021/la904119c
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 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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