Semiflexible polymers in spherical confinement: bipolar orientational order versus tennis ball states

Autores
Nikoubashman, Arash; Vega, Daniel Alberto; Binder, Kurt; Milchev, Andrey
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Densely packed semiflexible polymers with contour length L confined in spheres with radius R of the same order as L cannot exhibit uniform nematic order. Depending on the chain stiffness (which we vary over a wide range), highly distorted structures form with topological defects on the sphere surface. These structures are completely different from previously observed ones of very long chains winding around the inner surface of spheres and from nematic droplets. At high densities, a thin shell of polymers close to the sphere surface exhibits a tennis ball texture due to the confinement-induced gradual bending of polymer bonds. In contrast, when the contour length of the chains is significantly smaller than the radius of the confining sphere, a few bent smectic layers form in the sphere. Molecular dynamics simulations demonstrate these complex structures, and suitable order parameters characterizing them are proposed.
Fil: Nikoubashman, Arash. Johannes Gutenberg Universitat Mainz; Alemania
Fil: Vega, Daniel Alberto. Johannes Gutenberg Universitat Mainz; Alemania. 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: Binder, Kurt. Johannes Gutenberg Universitat Mainz; Alemania
Fil: Milchev, Andrey. Bulgarian Academy Of Sciences; Bulgaria. Johannes Gutenberg Universitat Mainz; Alemania
Materia
Polymer
Confinement
Phase Transition
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:11336/63311
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Semiflexible polymers in spherical confinement: bipolar orientational order versus tennis ball statesNikoubashman, ArashVega, Daniel AlbertoBinder, KurtMilchev, AndreyPolymerConfinementPhase Transitionhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Densely packed semiflexible polymers with contour length L confined in spheres with radius R of the same order as L cannot exhibit uniform nematic order. Depending on the chain stiffness (which we vary over a wide range), highly distorted structures form with topological defects on the sphere surface. These structures are completely different from previously observed ones of very long chains winding around the inner surface of spheres and from nematic droplets. At high densities, a thin shell of polymers close to the sphere surface exhibits a tennis ball texture due to the confinement-induced gradual bending of polymer bonds. In contrast, when the contour length of the chains is significantly smaller than the radius of the confining sphere, a few bent smectic layers form in the sphere. Molecular dynamics simulations demonstrate these complex structures, and suitable order parameters characterizing them are proposed.Fil: Nikoubashman, Arash. Johannes Gutenberg Universitat Mainz; AlemaniaFil: Vega, Daniel Alberto. Johannes Gutenberg Universitat Mainz; Alemania. 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: Binder, Kurt. Johannes Gutenberg Universitat Mainz; AlemaniaFil: Milchev, Andrey. Bulgarian Academy Of Sciences; Bulgaria. Johannes Gutenberg Universitat Mainz; AlemaniaAmerican Physical Society2017-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/63311Nikoubashman, Arash; Vega, Daniel Alberto; Binder, Kurt; Milchev, Andrey; Semiflexible polymers in spherical confinement: bipolar orientational order versus tennis ball states; American Physical Society; Physical Review Letters; 118; 21; 5-2017; 1-5; 217800031-9007CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.118.217803info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevLett.118.217803info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:47:00Zoai:ri.conicet.gov.ar:11336/63311instacron: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 09:47:00.966CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Semiflexible polymers in spherical confinement: bipolar orientational order versus tennis ball states
title Semiflexible polymers in spherical confinement: bipolar orientational order versus tennis ball states
spellingShingle Semiflexible polymers in spherical confinement: bipolar orientational order versus tennis ball states
Nikoubashman, Arash
Polymer
Confinement
Phase Transition
title_short Semiflexible polymers in spherical confinement: bipolar orientational order versus tennis ball states
title_full Semiflexible polymers in spherical confinement: bipolar orientational order versus tennis ball states
title_fullStr Semiflexible polymers in spherical confinement: bipolar orientational order versus tennis ball states
title_full_unstemmed Semiflexible polymers in spherical confinement: bipolar orientational order versus tennis ball states
title_sort Semiflexible polymers in spherical confinement: bipolar orientational order versus tennis ball states
dc.creator.none.fl_str_mv Nikoubashman, Arash
Vega, Daniel Alberto
Binder, Kurt
Milchev, Andrey
author Nikoubashman, Arash
author_facet Nikoubashman, Arash
Vega, Daniel Alberto
Binder, Kurt
Milchev, Andrey
author_role author
author2 Vega, Daniel Alberto
Binder, Kurt
Milchev, Andrey
author2_role author
author
author
dc.subject.none.fl_str_mv Polymer
Confinement
Phase Transition
topic Polymer
Confinement
Phase Transition
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Densely packed semiflexible polymers with contour length L confined in spheres with radius R of the same order as L cannot exhibit uniform nematic order. Depending on the chain stiffness (which we vary over a wide range), highly distorted structures form with topological defects on the sphere surface. These structures are completely different from previously observed ones of very long chains winding around the inner surface of spheres and from nematic droplets. At high densities, a thin shell of polymers close to the sphere surface exhibits a tennis ball texture due to the confinement-induced gradual bending of polymer bonds. In contrast, when the contour length of the chains is significantly smaller than the radius of the confining sphere, a few bent smectic layers form in the sphere. Molecular dynamics simulations demonstrate these complex structures, and suitable order parameters characterizing them are proposed.
Fil: Nikoubashman, Arash. Johannes Gutenberg Universitat Mainz; Alemania
Fil: Vega, Daniel Alberto. Johannes Gutenberg Universitat Mainz; Alemania. 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: Binder, Kurt. Johannes Gutenberg Universitat Mainz; Alemania
Fil: Milchev, Andrey. Bulgarian Academy Of Sciences; Bulgaria. Johannes Gutenberg Universitat Mainz; Alemania
description Densely packed semiflexible polymers with contour length L confined in spheres with radius R of the same order as L cannot exhibit uniform nematic order. Depending on the chain stiffness (which we vary over a wide range), highly distorted structures form with topological defects on the sphere surface. These structures are completely different from previously observed ones of very long chains winding around the inner surface of spheres and from nematic droplets. At high densities, a thin shell of polymers close to the sphere surface exhibits a tennis ball texture due to the confinement-induced gradual bending of polymer bonds. In contrast, when the contour length of the chains is significantly smaller than the radius of the confining sphere, a few bent smectic layers form in the sphere. Molecular dynamics simulations demonstrate these complex structures, and suitable order parameters characterizing them are proposed.
publishDate 2017
dc.date.none.fl_str_mv 2017-05
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/11336/63311
Nikoubashman, Arash; Vega, Daniel Alberto; Binder, Kurt; Milchev, Andrey; Semiflexible polymers in spherical confinement: bipolar orientational order versus tennis ball states; American Physical Society; Physical Review Letters; 118; 21; 5-2017; 1-5; 21780
0031-9007
CONICET Digital
CONICET
url http://hdl.handle.net/11336/63311
identifier_str_mv Nikoubashman, Arash; Vega, Daniel Alberto; Binder, Kurt; Milchev, Andrey; Semiflexible polymers in spherical confinement: bipolar orientational order versus tennis ball states; American Physical Society; Physical Review Letters; 118; 21; 5-2017; 1-5; 21780
0031-9007
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://journals.aps.org/prl/abstract/10.1103/PhysRevLett.118.217803
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevLett.118.217803
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 Physical Society
publisher.none.fl_str_mv American Physical 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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