Ultra-stretchable hydrogels with hierarchical hydrogen bonds

Hydrogels are attractive for applications in intelligent soft materials and flexible electronics. Herein, we report a new hydrogel with a hierarchical hydrogen bond system consisting of (1) weak hydrogen bonds between N,N-dimethylacrylamides (DMAA) and acrylic acids (AAc) and (2) strong multiple hyd...

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Autores principales: You, Yujing, Yang, Jian, Zheng, Qiang, Wu, Ningkun, Lv, Zhongda, Jiang, Zhiqiang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7366625/
https://www.ncbi.nlm.nih.gov/pubmed/32678203
http://dx.doi.org/10.1038/s41598-020-68678-9
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author You, Yujing
Yang, Jian
Zheng, Qiang
Wu, Ningkun
Lv, Zhongda
Jiang, Zhiqiang
author_facet You, Yujing
Yang, Jian
Zheng, Qiang
Wu, Ningkun
Lv, Zhongda
Jiang, Zhiqiang
author_sort You, Yujing
collection PubMed
description Hydrogels are attractive for applications in intelligent soft materials and flexible electronics. Herein, we report a new hydrogel with a hierarchical hydrogen bond system consisting of (1) weak hydrogen bonds between N,N-dimethylacrylamides (DMAA) and acrylic acids (AAc) and (2) strong multiple hydrogen bonds between 2-ureido-4[1H]-pyrimidinone units. By optimizing the ratios of DMAA and AAc and the balance of weak and strong hydrogen bonds, the hydrogels have unique properties. The transparent hydrogels have tunable Young’s modulus (70–1,250 kPa) and are highly stretchable (up to 4,340% strain), tough (fracture energies of 10.8 kJ/m(2), matching natural rubber) and insensitive to notches when it is highly stretched (λ = 19.6).
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spelling pubmed-73666252020-07-17 Ultra-stretchable hydrogels with hierarchical hydrogen bonds You, Yujing Yang, Jian Zheng, Qiang Wu, Ningkun Lv, Zhongda Jiang, Zhiqiang Sci Rep Article Hydrogels are attractive for applications in intelligent soft materials and flexible electronics. Herein, we report a new hydrogel with a hierarchical hydrogen bond system consisting of (1) weak hydrogen bonds between N,N-dimethylacrylamides (DMAA) and acrylic acids (AAc) and (2) strong multiple hydrogen bonds between 2-ureido-4[1H]-pyrimidinone units. By optimizing the ratios of DMAA and AAc and the balance of weak and strong hydrogen bonds, the hydrogels have unique properties. The transparent hydrogels have tunable Young’s modulus (70–1,250 kPa) and are highly stretchable (up to 4,340% strain), tough (fracture energies of 10.8 kJ/m(2), matching natural rubber) and insensitive to notches when it is highly stretched (λ = 19.6). Nature Publishing Group UK 2020-07-16 /pmc/articles/PMC7366625/ /pubmed/32678203 http://dx.doi.org/10.1038/s41598-020-68678-9 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
You, Yujing
Yang, Jian
Zheng, Qiang
Wu, Ningkun
Lv, Zhongda
Jiang, Zhiqiang
Ultra-stretchable hydrogels with hierarchical hydrogen bonds
title Ultra-stretchable hydrogels with hierarchical hydrogen bonds
title_full Ultra-stretchable hydrogels with hierarchical hydrogen bonds
title_fullStr Ultra-stretchable hydrogels with hierarchical hydrogen bonds
title_full_unstemmed Ultra-stretchable hydrogels with hierarchical hydrogen bonds
title_short Ultra-stretchable hydrogels with hierarchical hydrogen bonds
title_sort ultra-stretchable hydrogels with hierarchical hydrogen bonds
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7366625/
https://www.ncbi.nlm.nih.gov/pubmed/32678203
http://dx.doi.org/10.1038/s41598-020-68678-9
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