Toughening self-healing elastomer crosslinked by metal–ligand coordination through mixed counter anion dynamics
Abstract Mechanically tough and self-healable polymeric materials have found widespread applications in a sustainable future. However, coherent strategies for mechanically tough self-healing polymers are still lacking due to a trade-off relationship between mechanical robustness and viscoelasticity....
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-08-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-40791-z |
| _version_ | 1797558143520079872 |
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| author | Hyunchang Park Taewon Kang Hyunjun Kim Jeong-Chul Kim Zhenan Bao Jiheong Kang |
| author_facet | Hyunchang Park Taewon Kang Hyunjun Kim Jeong-Chul Kim Zhenan Bao Jiheong Kang |
| author_sort | Hyunchang Park |
| collection | DOAJ |
| description | Abstract Mechanically tough and self-healable polymeric materials have found widespread applications in a sustainable future. However, coherent strategies for mechanically tough self-healing polymers are still lacking due to a trade-off relationship between mechanical robustness and viscoelasticity. Here, we disclose a toughening strategy for self-healing elastomers crosslinked by metal–ligand coordination. Emphasis was placed on the effects of counter anions on the dynamic mechanical behaviors of polymer networks. As the coordinating ability of the counter anion increases, the binding of the anion leads to slower dynamics, thus limiting the stretchability and increasing the stiffness. Additionally, multimodal anions that can have diverse coordination modes provide unexpected dynamicity. By simply mixing multimodal and non-coordinating anions, we found a significant synergistic effect on mechanical toughness ( > 3 fold) and self-healing efficiency, which provides new insights into the design of coordination-based tough self-healing polymers. |
| first_indexed | 2024-03-10T17:26:16Z |
| format | Article |
| id | doaj.art-4bab9dffe0884127becff5a8e286cea1 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-10T17:26:16Z |
| publishDate | 2023-08-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-4bab9dffe0884127becff5a8e286cea12023-11-20T10:09:33ZengNature PortfolioNature Communications2041-17232023-08-0114111010.1038/s41467-023-40791-zToughening self-healing elastomer crosslinked by metal–ligand coordination through mixed counter anion dynamicsHyunchang Park0Taewon Kang1Hyunjun Kim2Jeong-Chul Kim3Zhenan Bao4Jiheong Kang5Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST)Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST)Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST)Center for Nanomaterials and Chemical Reactions, Institute for Basic Science (IBS)Department of Chemical Engineering, Stanford UniversityDepartment of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST)Abstract Mechanically tough and self-healable polymeric materials have found widespread applications in a sustainable future. However, coherent strategies for mechanically tough self-healing polymers are still lacking due to a trade-off relationship between mechanical robustness and viscoelasticity. Here, we disclose a toughening strategy for self-healing elastomers crosslinked by metal–ligand coordination. Emphasis was placed on the effects of counter anions on the dynamic mechanical behaviors of polymer networks. As the coordinating ability of the counter anion increases, the binding of the anion leads to slower dynamics, thus limiting the stretchability and increasing the stiffness. Additionally, multimodal anions that can have diverse coordination modes provide unexpected dynamicity. By simply mixing multimodal and non-coordinating anions, we found a significant synergistic effect on mechanical toughness ( > 3 fold) and self-healing efficiency, which provides new insights into the design of coordination-based tough self-healing polymers.https://doi.org/10.1038/s41467-023-40791-z |
| spellingShingle | Hyunchang Park Taewon Kang Hyunjun Kim Jeong-Chul Kim Zhenan Bao Jiheong Kang Toughening self-healing elastomer crosslinked by metal–ligand coordination through mixed counter anion dynamics Nature Communications |
| title | Toughening self-healing elastomer crosslinked by metal–ligand coordination through mixed counter anion dynamics |
| title_full | Toughening self-healing elastomer crosslinked by metal–ligand coordination through mixed counter anion dynamics |
| title_fullStr | Toughening self-healing elastomer crosslinked by metal–ligand coordination through mixed counter anion dynamics |
| title_full_unstemmed | Toughening self-healing elastomer crosslinked by metal–ligand coordination through mixed counter anion dynamics |
| title_short | Toughening self-healing elastomer crosslinked by metal–ligand coordination through mixed counter anion dynamics |
| title_sort | toughening self healing elastomer crosslinked by metal ligand coordination through mixed counter anion dynamics |
| url | https://doi.org/10.1038/s41467-023-40791-z |
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