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Anomalous Dynamics in Macromolecular Liquids

Macromolecular liquids display short-time anomalous behaviors in disagreement with conventional single-molecule mean-field theories. In this study, we analyze the behavior of the simplest but most realistic macromolecular system that displays anomalous dynamics, i.e., a melt of short homopolymer cha...

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Detalles Bibliográficos
Autor principal: Guenza, Marina G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8912788/
https://www.ncbi.nlm.nih.gov/pubmed/35267678
http://dx.doi.org/10.3390/polym14050856
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author Guenza, Marina G.
author_facet Guenza, Marina G.
author_sort Guenza, Marina G.
collection PubMed
description Macromolecular liquids display short-time anomalous behaviors in disagreement with conventional single-molecule mean-field theories. In this study, we analyze the behavior of the simplest but most realistic macromolecular system that displays anomalous dynamics, i.e., a melt of short homopolymer chains, starting from molecular dynamics simulation trajectories. Our study sheds some light on the microscopic molecular mechanisms responsible for the observed anomalous behavior. The relevance of the correlation hole, a unique property of polymer liquids, in relation to the observed subdiffusive dynamics, naturally emerges from the analysis of the van Hove distribution functions and other properties.
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spelling pubmed-89127882022-03-11 Anomalous Dynamics in Macromolecular Liquids Guenza, Marina G. Polymers (Basel) Article Macromolecular liquids display short-time anomalous behaviors in disagreement with conventional single-molecule mean-field theories. In this study, we analyze the behavior of the simplest but most realistic macromolecular system that displays anomalous dynamics, i.e., a melt of short homopolymer chains, starting from molecular dynamics simulation trajectories. Our study sheds some light on the microscopic molecular mechanisms responsible for the observed anomalous behavior. The relevance of the correlation hole, a unique property of polymer liquids, in relation to the observed subdiffusive dynamics, naturally emerges from the analysis of the van Hove distribution functions and other properties. MDPI 2022-02-22 /pmc/articles/PMC8912788/ /pubmed/35267678 http://dx.doi.org/10.3390/polym14050856 Text en © 2022 by the author. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Guenza, Marina G.
Anomalous Dynamics in Macromolecular Liquids
title Anomalous Dynamics in Macromolecular Liquids
title_full Anomalous Dynamics in Macromolecular Liquids
title_fullStr Anomalous Dynamics in Macromolecular Liquids
title_full_unstemmed Anomalous Dynamics in Macromolecular Liquids
title_short Anomalous Dynamics in Macromolecular Liquids
title_sort anomalous dynamics in macromolecular liquids
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8912788/
https://www.ncbi.nlm.nih.gov/pubmed/35267678
http://dx.doi.org/10.3390/polym14050856
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