Dynamics of a network fluid within the liquid–gas coexistence region
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.21/8496 |
Resumo: | Low-density networks of molecules or colloids are formed at low temperatures when the interparticle interactions are valence limited. Prototypical examples are networks of patchy particles, where the limited valence results from highly directional pairwise interactions. We combine extensive Langevin simulations and Wertheim's theory of association to study these networks. We find a scale-free (relaxation) dynamics within the liquid–gas coexistence region, which differs from that usually observed for isotropic particles. While for isotropic particles the relaxation dynamics is driven by surface tension (coarsening), when the valence is limited, the slow relaxation proceeds through the formation of an intermediate non-equilibrium gel via a geometrical percolation transition in the Random Percolation universality class. We show that the slow dynamics is universal, being also observed outside the coexistence region at low temperatures in the single phase region. |
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Dynamics of a network fluid within the liquid–gas coexistence regionLiquid-gasIsotropicRelaxationLow-density networks of molecules or colloids are formed at low temperatures when the interparticle interactions are valence limited. Prototypical examples are networks of patchy particles, where the limited valence results from highly directional pairwise interactions. We combine extensive Langevin simulations and Wertheim's theory of association to study these networks. We find a scale-free (relaxation) dynamics within the liquid–gas coexistence region, which differs from that usually observed for isotropic particles. While for isotropic particles the relaxation dynamics is driven by surface tension (coarsening), when the valence is limited, the slow relaxation proceeds through the formation of an intermediate non-equilibrium gel via a geometrical percolation transition in the Random Percolation universality class. We show that the slow dynamics is universal, being also observed outside the coexistence region at low temperatures in the single phase region.Royal Society of ChemistryRCIPLDias, CristóvãoTavares, JoseAraujo, NunoGama, Margarida2018-05-09T10:00:53Z2018-04-142018-04-14T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/8496engDIAS, C. S.; TAVARES, J. M.; ARAÚJO, N. A. M.; GAMA, M. M. Telo da – Dynamics of a network fluid within the liquid–gas coexistence region. Soft Matter. ISSN 1744-6848. Vol. 14, N.º 14 (2018), pp. 2744-27501744-684810.1039/c7sm01996cmetadata only accessinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-08-03T09:56:00Zoai:repositorio.ipl.pt:10400.21/8496Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:17:15.092206Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Dynamics of a network fluid within the liquid–gas coexistence region |
title |
Dynamics of a network fluid within the liquid–gas coexistence region |
spellingShingle |
Dynamics of a network fluid within the liquid–gas coexistence region Dias, Cristóvão Liquid-gas Isotropic Relaxation |
title_short |
Dynamics of a network fluid within the liquid–gas coexistence region |
title_full |
Dynamics of a network fluid within the liquid–gas coexistence region |
title_fullStr |
Dynamics of a network fluid within the liquid–gas coexistence region |
title_full_unstemmed |
Dynamics of a network fluid within the liquid–gas coexistence region |
title_sort |
Dynamics of a network fluid within the liquid–gas coexistence region |
author |
Dias, Cristóvão |
author_facet |
Dias, Cristóvão Tavares, Jose Araujo, Nuno Gama, Margarida |
author_role |
author |
author2 |
Tavares, Jose Araujo, Nuno Gama, Margarida |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
RCIPL |
dc.contributor.author.fl_str_mv |
Dias, Cristóvão Tavares, Jose Araujo, Nuno Gama, Margarida |
dc.subject.por.fl_str_mv |
Liquid-gas Isotropic Relaxation |
topic |
Liquid-gas Isotropic Relaxation |
description |
Low-density networks of molecules or colloids are formed at low temperatures when the interparticle interactions are valence limited. Prototypical examples are networks of patchy particles, where the limited valence results from highly directional pairwise interactions. We combine extensive Langevin simulations and Wertheim's theory of association to study these networks. We find a scale-free (relaxation) dynamics within the liquid–gas coexistence region, which differs from that usually observed for isotropic particles. While for isotropic particles the relaxation dynamics is driven by surface tension (coarsening), when the valence is limited, the slow relaxation proceeds through the formation of an intermediate non-equilibrium gel via a geometrical percolation transition in the Random Percolation universality class. We show that the slow dynamics is universal, being also observed outside the coexistence region at low temperatures in the single phase region. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-05-09T10:00:53Z 2018-04-14 2018-04-14T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.21/8496 |
url |
http://hdl.handle.net/10400.21/8496 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
DIAS, C. S.; TAVARES, J. M.; ARAÚJO, N. A. M.; GAMA, M. M. Telo da – Dynamics of a network fluid within the liquid–gas coexistence region. Soft Matter. ISSN 1744-6848. Vol. 14, N.º 14 (2018), pp. 2744-2750 1744-6848 10.1039/c7sm01996c |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
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metadata only access |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
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:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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