|
Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Life Science / Faculty of Advanced Life Science >
Peer-reviewed Journal Articles, etc >
Molecular mechanism of abnormally large nonsoftening deformation in a tough hydrogel
| Title: | Molecular mechanism of abnormally large nonsoftening deformation in a tough hydrogel |
| Authors: | Ye, Ya Nan Browse this author | | Cui, Kunpeng Browse this author | | Hong, Wei Browse this author | | Li, Xueyu Browse this author | | Yu, Chengtao Browse this author | | Hourdet, Dominique Browse this author | | Nakajima, Tasuku Browse this author | | Kurokawa, Takayuki Browse this author | | Gong, Jian Ping Browse this author →KAKEN DB |
| Keywords: | tough hydrogel | | nonsoftening | | large quasi-linear deformation | | hyperconnective network | | molecular glue |
| Issue Date: | 6-Apr-2021 |
| Publisher: | National Academy of Sciences. |
| Journal Title: | Proceedings of the National Academy of Sciences of the United States of America (PNAS) |
| Volume: | 118 |
| Issue: | 14 |
| Start Page: | e2014694118 |
| Publisher DOI: | 10.1073/pnas.2014694118 |
| Abstract: | Tough soft materials usually show strain softening and inelastic deformation. Here, we study the molecular mechanism of abnormally large nonsoftening, quasi-linear but inelastic deformation in tough hydrogels made of hyperconnective physical network and linear polymers as molecular glues to the network. The interplay of hyperconnectivity of network and effective load transfer by molecular glues prevents stress concentration, which is revealed by an affine deformation of the network to the bulk deformation up to sample failure. The suppression of local stress concentration and strain amplification plays a key role in avoiding necking or strain softening and endows the gels with a unique large nonsoftening, quasi-linear but inelastic deformation. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/82899 |
| 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)
|
Submitter: 龔 剣萍 (Gong Jian Ping)
|
