Molecular mechanism of abnormally large nonsoftening deformation in a tough hydrogel

Ye, Ya Nan; Cui, Kunpeng; Hong, Wei et al.

Proceedings of the National Academy of Sciences of the United States of America (PNAS), 2021, 118(14), e2014694118

Permalink : https://hdl.handle.net/2115/82899

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論文情報

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アクセス権
open access
URI
https://hdl.handle.net/2115/82899
タイトル
Molecular mechanism of abnormally large nonsoftening deformation in a tough hydrogel
著者
Ye, Ya Nan ; Cui, Kunpeng ; Hong, Wei ; Li, Xueyu ; Yu, Chengtao ; Hourdet, Dominique ; Nakajima, Tasuku ; Kurokawa, Takayuki ; Gong, Jian Ping
著者名
Ye, Ya Nan
著者名
Cui, Kunpeng
著者名
Hong, Wei
著者名
Li, Xueyu
著者名
Yu, Chengtao
著者名
Hourdet, Dominique
著者名
Nakajima, Tasuku
著者名
Kurokawa, Takayuki
e-Rad_Researcher
20250417
著者名
Gong, Jian Ping
言語
英語
キーワード
tough hydrogel
nonsoftening
large quasi-linear deformation
hyperconnective network
molecular glue
発行日
2021-04-06
出版者
National Academy of Sciences.
収録物名
Proceedings of the National Academy of Sciences of the United States of America (PNAS)
巻(号)
118(14)
ページ
e2014694118
抄録
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.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
PISSN
0027-8424
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.1073/pnas.2014694118