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Self‐Healable Fluorinated Copolymers Governed by Dipolar Interactions

Although dipolar forces between copolymer chains are relatively weak, they result in ubiquitous inter‐ and/or intramolecular interactions which are particularly critical in achieving the mechanical integrity of polymeric materials. In this study, a route is developed to obtain self‐healable properti...

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Autores principales: Wang, Siyang, Urban, Marek W.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8425892/
https://www.ncbi.nlm.nih.gov/pubmed/34231336
http://dx.doi.org/10.1002/advs.202101399
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author Wang, Siyang
Urban, Marek W.
author_facet Wang, Siyang
Urban, Marek W.
author_sort Wang, Siyang
collection PubMed
description Although dipolar forces between copolymer chains are relatively weak, they result in ubiquitous inter‐ and/or intramolecular interactions which are particularly critical in achieving the mechanical integrity of polymeric materials. In this study, a route is developed to obtain self‐healable properties in thermoplastic copolymers that rely on noncovalent dipolar interactions present in essentially all macromolecules and particularly fluorine‐containing copolymers. The combination of dipolar interactions between C─F and C═O bonds as well as CH(2)/CH(3) entities facilitates self‐healing without external intervention. The presence of dipole‐dipole, dipole‐induced dipole, and induced‐dipole induced dipole interactions leads to a viscoelastic response that controls macroscopic autonomous multicycle self‐healing of fluorinated copolymers under ambient conditions. Energetically favorable dipolar forces attributed to monomer sequence and monomer molar ratios induces desirable copolymer tacticities, enabling entropic energy recovery stored during mechanical damage. The use of dipolar forces instead of chemical or physical modifications not only eliminates additional alternations enabling multiple damage‐repair cycles but also provides further opportunity for designing self‐healable commodity thermoplastics. These materials may offer numerous applications, ranging from the use in electronics, ion batteries, H(2) fuel dispense hoses to self‐healable pet toys, packaging, paints and coatings, and many others.
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spelling pubmed-84258922021-09-13 Self‐Healable Fluorinated Copolymers Governed by Dipolar Interactions Wang, Siyang Urban, Marek W. Adv Sci (Weinh) Research Articles Although dipolar forces between copolymer chains are relatively weak, they result in ubiquitous inter‐ and/or intramolecular interactions which are particularly critical in achieving the mechanical integrity of polymeric materials. In this study, a route is developed to obtain self‐healable properties in thermoplastic copolymers that rely on noncovalent dipolar interactions present in essentially all macromolecules and particularly fluorine‐containing copolymers. The combination of dipolar interactions between C─F and C═O bonds as well as CH(2)/CH(3) entities facilitates self‐healing without external intervention. The presence of dipole‐dipole, dipole‐induced dipole, and induced‐dipole induced dipole interactions leads to a viscoelastic response that controls macroscopic autonomous multicycle self‐healing of fluorinated copolymers under ambient conditions. Energetically favorable dipolar forces attributed to monomer sequence and monomer molar ratios induces desirable copolymer tacticities, enabling entropic energy recovery stored during mechanical damage. The use of dipolar forces instead of chemical or physical modifications not only eliminates additional alternations enabling multiple damage‐repair cycles but also provides further opportunity for designing self‐healable commodity thermoplastics. These materials may offer numerous applications, ranging from the use in electronics, ion batteries, H(2) fuel dispense hoses to self‐healable pet toys, packaging, paints and coatings, and many others. John Wiley and Sons Inc. 2021-07-06 /pmc/articles/PMC8425892/ /pubmed/34231336 http://dx.doi.org/10.1002/advs.202101399 Text en © 2021 The Authors. Advanced Science published by Wiley‐VCH GmbH https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Wang, Siyang
Urban, Marek W.
Self‐Healable Fluorinated Copolymers Governed by Dipolar Interactions
title Self‐Healable Fluorinated Copolymers Governed by Dipolar Interactions
title_full Self‐Healable Fluorinated Copolymers Governed by Dipolar Interactions
title_fullStr Self‐Healable Fluorinated Copolymers Governed by Dipolar Interactions
title_full_unstemmed Self‐Healable Fluorinated Copolymers Governed by Dipolar Interactions
title_short Self‐Healable Fluorinated Copolymers Governed by Dipolar Interactions
title_sort self‐healable fluorinated copolymers governed by dipolar interactions
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8425892/
https://www.ncbi.nlm.nih.gov/pubmed/34231336
http://dx.doi.org/10.1002/advs.202101399
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