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Hokkaido University Collection of Scholarly and Academic Papers >
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Internal Damage Evolution in Double-Network Hydrogels Studied by Microelectrode Technique
| Title: | Internal Damage Evolution in Double-Network Hydrogels Studied by Microelectrode Technique |
| Authors: | Guo, Honglei Browse this author | | Hong, Wei Browse this author | | Kurokawa, Takayuki Browse this author | | Matsuda, Takahiro Browse this author | | Wu, Zi Liang Browse this author | | Nakajima, Tasuku Browse this author | | Takahata, Masakazu Browse this author | | Sun, Taolin Browse this author | | Rao, Ping Browse this author | | Gong, Jian Ping Browse this author →KAKEN DB |
| Issue Date: | 24-Sep-2019 |
| Publisher: | American Chemical Society |
| Journal Title: | Macromolecules |
| Volume: | 52 |
| Issue: | 18 |
| Start Page: | 7114 |
| End Page: | 7122 |
| Publisher DOI: | 10.1021/acs.macromol.9b01308 |
| Abstract: | Double-network (DN) hydrogels have attracted considerable attention owing to their unique mechanism to show extraordinary mechanical strength and toughness. Although the toughening mechanism of the DN gels, breaking of the relatively stiff and brittle first network as sacrificial bonds, is widely accepted, the microstructure and morphology evolution of the internal damage have hardly been revealed. In this study, we study the internal structures of the first network in partially damaged DN gels by using the microelectrode technique (MET) based on the Donnan effect of the polyelectrolyte first network. We measure the spatial distribution of the electric potential of the prestretched and then reswelled DN gels. From the anisotropic depth profiles of potential and reswelling ratio, the microstructures of DN gels at a scale larger than the microelectrode probe size (similar to 200 nm) are revealed at the preyielding, yielding, and strain-hardening regimes. |
| 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://doi.org/10.1021/acs.macromol.9b01308. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/79300 |
| 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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