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Polymer Adsorbed Bilayer Membranes Form Self-Healing Hydrogels with Tunable Superstructure

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Title: Polymer Adsorbed Bilayer Membranes Form Self-Healing Hydrogels with Tunable Superstructure
Authors: Li, Xufeng Browse this author
Kurokawa, Takayuki Browse this author
Takahashi, Riku Browse this author
Haque, Md. Anamul Browse this author
Yue, Youfeng Browse this author
Nakajima, Tasuku Browse this author
Gong, Jian Ping Browse this author →KAKEN DB
Issue Date: 14-Apr-2015
Journal Title: Macromolecules
Volume: 48
Issue: 7
Start Page: 2277
End Page: 2282
Publisher DOI: 10.1021/acs.macromol.5b00422
Abstract: We report that polymers can support bilayer membranes to form physical hydrogels of self-healing and tunable isotropic/anisotropic structure. The system consists of poly(dodecyl glyceryl itaconate) (PDGI) which forms lamellar bilayers and polyacrylamide (PAAm) which adsorbs on the bilayer surfaces via hydrogen bond formation. Adsorption of PAAm brings two effects: disturbs the bilayer packing and causes bending of the bilayers; increases the effective thickness of the bilayers and enhances the repulsion between the bilayers due to excluded volume effect. Competition of these two effects brings about sharp superstructure transition from isotropic multilayer foam phase to unidirectionally aligned lamellar phase. Accompanied by this structure transition, the bulk hydrogel exhibits isotropic/anisotropic swelling. The physical gels exhibit high tensile strength and self-healing properties that can be understood by the sacrificial bonds mechanism.
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 .
Type: article (author version)
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)

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