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Mixing Linear Polymers with Rings and Catenanes: Bulk and Interfacial Behavior

[Image: see text] We derive and parameterize effective interaction potentials between a multitude of different types of ring polymers and linear chains, varying the bending rigidity and solvent quality for the former species. We further develop and apply a density functional treatment for mixtures o...

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Autores principales: Staňo, Roman, Likos, Christos N., Egorov, Sergei A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2023
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10601540/
https://www.ncbi.nlm.nih.gov/pubmed/37900098
http://dx.doi.org/10.1021/acs.macromol.3c01267
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author Staňo, Roman
Likos, Christos N.
Egorov, Sergei A.
author_facet Staňo, Roman
Likos, Christos N.
Egorov, Sergei A.
author_sort Staňo, Roman
collection PubMed
description [Image: see text] We derive and parameterize effective interaction potentials between a multitude of different types of ring polymers and linear chains, varying the bending rigidity and solvent quality for the former species. We further develop and apply a density functional treatment for mixtures of both disconnected (chain–ring) and connected (chain-polycatenane) mixtures of the same, drawing coexistence binodals and exploring the ensuing response functions as well as the interface and wetting behavior of the mixtures. We show that worsening of the solvent quality for the rings brings about a stronger propensity for macroscopic phase separation in the linear-polycatenane mixtures, which is predominantly of the demixing type between phases of similar overall particle density. We formulate a simple criterion based on the effective interactions, allowing us to determine whether any specific linear-ring mixture will undergo a demixing phase separation.
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spelling pubmed-106015402023-10-27 Mixing Linear Polymers with Rings and Catenanes: Bulk and Interfacial Behavior Staňo, Roman Likos, Christos N. Egorov, Sergei A. Macromolecules [Image: see text] We derive and parameterize effective interaction potentials between a multitude of different types of ring polymers and linear chains, varying the bending rigidity and solvent quality for the former species. We further develop and apply a density functional treatment for mixtures of both disconnected (chain–ring) and connected (chain-polycatenane) mixtures of the same, drawing coexistence binodals and exploring the ensuing response functions as well as the interface and wetting behavior of the mixtures. We show that worsening of the solvent quality for the rings brings about a stronger propensity for macroscopic phase separation in the linear-polycatenane mixtures, which is predominantly of the demixing type between phases of similar overall particle density. We formulate a simple criterion based on the effective interactions, allowing us to determine whether any specific linear-ring mixture will undergo a demixing phase separation. American Chemical Society 2023-10-03 /pmc/articles/PMC10601540/ /pubmed/37900098 http://dx.doi.org/10.1021/acs.macromol.3c01267 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Staňo, Roman
Likos, Christos N.
Egorov, Sergei A.
Mixing Linear Polymers with Rings and Catenanes: Bulk and Interfacial Behavior
title Mixing Linear Polymers with Rings and Catenanes: Bulk and Interfacial Behavior
title_full Mixing Linear Polymers with Rings and Catenanes: Bulk and Interfacial Behavior
title_fullStr Mixing Linear Polymers with Rings and Catenanes: Bulk and Interfacial Behavior
title_full_unstemmed Mixing Linear Polymers with Rings and Catenanes: Bulk and Interfacial Behavior
title_short Mixing Linear Polymers with Rings and Catenanes: Bulk and Interfacial Behavior
title_sort mixing linear polymers with rings and catenanes: bulk and interfacial behavior
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10601540/
https://www.ncbi.nlm.nih.gov/pubmed/37900098
http://dx.doi.org/10.1021/acs.macromol.3c01267
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