Mechanical Model for Super-Anisotropic Swelling of the Multi-Cylindrical PDGI/PAAm Gels

Nakajima, Tasuku; Mito, Kei; Gong, Jian Ping

doi:10.3390/polym15071624


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Mechanical Model for Super-Anisotropic Swelling of the Multi-Cylindrical PDGI/PAAm Gels

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/89262

Title:	Mechanical Model for Super-Anisotropic Swelling of the Multi-Cylindrical PDGI/PAAm Gels
Authors:	Nakajima, Tasuku Browse this author →KAKEN DB
	Mito, Kei Browse this author
	Gong, Jian Ping Browse this author →KAKEN DB
Keywords:	gel
	anisotropic swelling
	lipid bilayer
	X-ray diffraction
	buckling
	actuator
Issue Date:	1-Apr-2023
Publisher:	MDPI
Journal Title:	Polymers
Volume:	15
Issue:	7
Start Page:	1624
Publisher DOI:	10.3390/polym15071624
Abstract:	MC-PDGI/PAAm gels are cylindrical composite gels containing poly(dodecyl glyceryl itaconate) (PDGI) as a polymerized lipid oriented in a multilayer tubular shape within a polyacrylamide (PAAm) network. The most unique feature of the MC-PDGI/PAAm gel is its super-anisotropic swelling, wherein the diameter of the gel increases, but the length decreases with an increase in the volume of the gel. Through swelling and small-angle X-ray diffraction experiments, we investigated the effects of PDGI lipid bilayers and polymer network on the swelling of the MC-PDGI/PAAm gel, which suggests that the swelling anisotropy of the MC-PDGI/PAAm gel is dominated by the elasticity of the PDGI bilayers. Furthermore, we investigated the equation of state of the gel that roughly reproduced the experimental swelling results. These findings are crucial for realizing the controlled super-anisotropic swelling of MC-PDGI/PAAm gels and their applications as anisotropic actuation devices.
Rights:	https://creativecommons.org/licenses/by/4.0/
Type:	article
URI:	http://hdl.handle.net/2115/89262
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)

OAI-PMH ( junii2 , jpcoar_1.0 )

- Hokkaido University