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Acylhydrazine-based reticular hydrogen bonds enable robust, tough, and dynamic supramolecular materials

Supramolecular materials are widely recognized among the most promising candidates for future generations of sustainable plastics because of their dynamic functions. However, the weak noncovalent cross-links that endow dynamic properties usually trade off materials’ mechanical robustness. Here, we p...

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Autores principales: Deng, Yuanxin, Zhang, Qi, Shi, Chenyu, Toyoda, Ryojun, Qu, Da-Hui, Tian, He, Feringa, Ben L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8797780/
https://www.ncbi.nlm.nih.gov/pubmed/35089796
http://dx.doi.org/10.1126/sciadv.abk3286
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author Deng, Yuanxin
Zhang, Qi
Shi, Chenyu
Toyoda, Ryojun
Qu, Da-Hui
Tian, He
Feringa, Ben L.
author_facet Deng, Yuanxin
Zhang, Qi
Shi, Chenyu
Toyoda, Ryojun
Qu, Da-Hui
Tian, He
Feringa, Ben L.
author_sort Deng, Yuanxin
collection PubMed
description Supramolecular materials are widely recognized among the most promising candidates for future generations of sustainable plastics because of their dynamic functions. However, the weak noncovalent cross-links that endow dynamic properties usually trade off materials’ mechanical robustness. Here, we present the discovery of a simple and robust supramolecular cross-linking strategy based on acylhydrazine units, which can hierarchically cross-link the solvent-free network of poly(disulfides) by forming unique reticular hydrogen bonds, enabling the conversion of soft into stiff dynamic material. The resulting supramolecular materials exhibit increase in stiffness exceeding two to three orders of magnitude compared to those based on the hydrogen-bonding network of analogous carboxylic acids, simultaneously preserving the repairability, malleability, and recyclability of the materials. The materials also show high adhesion strength on various surfaces while allowing multiple surface attachment cycles without fatigue, illustrating a viable approach how robustness and dynamics can be merged in future material design.
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spelling pubmed-87977802022-02-09 Acylhydrazine-based reticular hydrogen bonds enable robust, tough, and dynamic supramolecular materials Deng, Yuanxin Zhang, Qi Shi, Chenyu Toyoda, Ryojun Qu, Da-Hui Tian, He Feringa, Ben L. Sci Adv Physical and Materials Sciences Supramolecular materials are widely recognized among the most promising candidates for future generations of sustainable plastics because of their dynamic functions. However, the weak noncovalent cross-links that endow dynamic properties usually trade off materials’ mechanical robustness. Here, we present the discovery of a simple and robust supramolecular cross-linking strategy based on acylhydrazine units, which can hierarchically cross-link the solvent-free network of poly(disulfides) by forming unique reticular hydrogen bonds, enabling the conversion of soft into stiff dynamic material. The resulting supramolecular materials exhibit increase in stiffness exceeding two to three orders of magnitude compared to those based on the hydrogen-bonding network of analogous carboxylic acids, simultaneously preserving the repairability, malleability, and recyclability of the materials. The materials also show high adhesion strength on various surfaces while allowing multiple surface attachment cycles without fatigue, illustrating a viable approach how robustness and dynamics can be merged in future material design. American Association for the Advancement of Science 2022-01-28 /pmc/articles/PMC8797780/ /pubmed/35089796 http://dx.doi.org/10.1126/sciadv.abk3286 Text en Copyright © 2022 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). https://creativecommons.org/licenses/by-nc/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (https://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.
spellingShingle Physical and Materials Sciences
Deng, Yuanxin
Zhang, Qi
Shi, Chenyu
Toyoda, Ryojun
Qu, Da-Hui
Tian, He
Feringa, Ben L.
Acylhydrazine-based reticular hydrogen bonds enable robust, tough, and dynamic supramolecular materials
title Acylhydrazine-based reticular hydrogen bonds enable robust, tough, and dynamic supramolecular materials
title_full Acylhydrazine-based reticular hydrogen bonds enable robust, tough, and dynamic supramolecular materials
title_fullStr Acylhydrazine-based reticular hydrogen bonds enable robust, tough, and dynamic supramolecular materials
title_full_unstemmed Acylhydrazine-based reticular hydrogen bonds enable robust, tough, and dynamic supramolecular materials
title_short Acylhydrazine-based reticular hydrogen bonds enable robust, tough, and dynamic supramolecular materials
title_sort acylhydrazine-based reticular hydrogen bonds enable robust, tough, and dynamic supramolecular materials
topic Physical and Materials Sciences
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8797780/
https://www.ncbi.nlm.nih.gov/pubmed/35089796
http://dx.doi.org/10.1126/sciadv.abk3286
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