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Rate-Independent Self-Healing Double Network Hydrogels Using a Thixotropic Sacrificial Network
| Title: | Rate-Independent Self-Healing Double Network Hydrogels Using a Thixotropic Sacrificial Network |
| Authors: | Yasui, Tomoki Browse this author | | Zheng, Yong Browse this author | | Nakajima, Tasuku Browse this author →KAKEN DB | | Kamio, Eiji Browse this author | | Matsuyama, Hideto Browse this author | | Gong, Jian Ping Browse this author →KAKEN DB |
| Issue Date: | 8-Nov-2022 |
| Publisher: | American Chemical Society(ACS) |
| Journal Title: | Macromolecules |
| Volume: | 55 |
| Issue: | 21 |
| Start Page: | 9547 |
| End Page: | 9557 |
| Publisher DOI: | 10.1021/acs.macromol.2c01425 |
| Abstract: | Tough and self-healing hydrogels can be developed by incorporating non-covalent dynamic bonds in the polymer network as reversible sacrificial bonds to dissipate energy. However, the dynamic nature of the non-covalent bonds results in strong strain rate dependency of the materials. In most applications, strain-rate independent mechanical performances are required. Developing tough self-healing hydrogels showing strain rate-independency is a challenge. In this study, we realize this by adopting the thixotropic hydrogel of an oligomeric electrolyte gelator as a brittle, though self-healing, sacrificial network of tough double network (DN) hydrogels. The hydrogels, synthesized via a facile one-pot approach, show specific features of typical double network materials, including high mechanical strength, strain softening, large mechanical hysteresis, but also self-healing and strain rate-independency. As the strain rate-independent and self-healing mechanical behavior of these novel hydrogels overcome the shortcomings of the existing DN hydrogels, these results expand the application spectrum of DN hydrogels. |
| Rights: | This document is the Accepted Manuscript version of a Published Work that appeared in final form in Macromolecules, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/articlesonrequest/AOR-ZXZJEFRHXYWXVEBQ72EF. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/90652 |
| 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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