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Inverse mechanical-swelling coupling of a highly deformed double-network gel
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| Title: | Inverse mechanical-swelling coupling of a highly deformed double-network gel |
| Authors: | Imaoka, Chika Browse this author | | Nakajima, Tasuku Browse this author →KAKEN DB | | Indei, Tsutomu Browse this author →KAKEN DB | | Iwata, Masaya Browse this author | | Hong, Wei Browse this author | | Marcellan, Alba Browse this author | | Gong, Jian Ping Browse this author →KAKEN DB |
| Issue Date: | 10-May-2023 |
| Publisher: | American Association for the Advancement of Science（AAAS） |
| Journal Title: | Science Advances |
| Volume: | 9 |
| Issue: | 19 |
| Start Page: | eabp8351 |
| Publisher DOI: | 10.1126/sciadv.abp8351 |
| PMID: | 37163599 |
| Abstract: | Mechanical behaviors of a polymer gel are coupled with its swelling behavior. It has been known that typical hydrogels display extension-induced swelling and drying-induced stiffening, called normal mechanical-swelling coupling. In this study, we experimentally found that highly extended double-network (DN) hydrogels exhibit abnormal inverse mechanical-swelling coupling such as extension-induced deswelling and drying-induced softening. We established theoretical hyperelastic and swelling models that reproduced all the complicated mechanical and swelling trends of the highly deformed DN hydrogels. From these theoretical analyses, it is considered that the inverse mechanical-swelling coupling of a DN gel is derived from the extreme nonlinear elasticity of its first network at its ultimate deformation state. These findings contribute toward the understanding of the mechanics of rubber-like materials up to their ultimate deformation and fracture limit. |
| Rights: | https://creativecommons.org/licenses/by/4.0/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/90124 |
| Appears in Collections: | 生命科学院・先端生命科学研究院 (Graduate School of Life Science / Faculty of Advanced Life Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 龔 剣萍 (Gong Jian Ping)
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