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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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Formato: | Online Artículo Texto |
Lenguaje: | English |
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MDPI
2022
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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. |
format | Online Article Text |
id | pubmed-8912788 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT guenzamarinag anomalousdynamicsinmacromolecularliquids |