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Network elasticity of a model hydrogel as a function of swelling ratio : from shrinking to extreme swelling states
Title: | Network elasticity of a model hydrogel as a function of swelling ratio : from shrinking to extreme swelling states |
Authors: | Hoshino, Ken-ichi Browse this author | Nakajima, Tasuku Browse this author →KAKEN DB | Matsuda, Takahiro Browse this author | Sakai, Takamasa Browse this author →KAKEN DB | Gong, Jian Ping Browse this author →KAKEN DB |
Issue Date: | 21-Dec-2018 |
Publisher: | Royal Society of Chemistry |
Journal Title: | Soft matter |
Volume: | 14 |
Issue: | 47 |
Start Page: | 9693 |
End Page: | 9701 |
Publisher DOI: | 10.1039/C8SM01854E |
PMID: | 30460959 |
Abstract: | n this work, we intended to investigate the relationship between the swelling ratio Q and Young's modulus E of hydrogels from their contracted state to extreme swelling state and elucidate the underlining molecular mechanism. For this purpose, we used tetra-poly(ethylene glycol) (tetra-PEG) gel, whose network parameters are well known, as the polymer backbone, and we succeeded in tuning the swelling of the gel by a factor of 1500 times while maintaining the topological structure of the network unchanged, using an approach combining a molecular stent method and a PEG dehydration method. A master curve of Q–E, independent of the method of obtaining Q, was obtained. Using the worm-like chain model, the experimentally determined master curve can be well reproduced. We also observed that the uniaxial stress–strain curve of the hydrogel can be well predicted by the worm-like chain model using the structure parameters determined from the fitting of the Q–E experimental curve. |
Type: | article (author version) |
URI: | http://hdl.handle.net/2115/76352 |
Appears in Collections: | 国際連携研究教育局 : GI-CoRE (Global Institution for Collaborative Research and Education : GI-CoRE) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc) 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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