Remarkable shape memory effect of a natural biopolymer in aqueous environment

IMR OpenIR

	Remarkable shape memory effect of a natural biopolymer in aqueous environment
	Liu, Z. Q.; Jiao, D.; Zhang, Z. F.; liuzq@imr.ac.cn; zhfzhang@imr.ac.cn
	2015
发表期刊	BIOMATERIALS
ISSN	0142-9612
卷号	65 页码:13-21
摘要	Remarkable water-stimulated shape memory effect was revealed in a natural biopolymer of peacock's tail covert feathers of which the innate shape can almost be fully recovered after severe deformation by a short hydration step. The shape memory effect manifests a good stability of high recovery rate and ratio during cycles of deformation and subsequent recovery. Both strength and energy absorption efficiency of medullary foam can be recovered despite the apparent decrease in the first deformation stroke caused by structural damage. A kinetic model developed from non-equilibrium thermodynamic fluctuation theory was adopted to describe the shape recovery process by considering the viscoelastic relaxation. The effects of hydration on mechanical properties, recovery kinetics, activation process and dynamic mechanical behaviors were also evaluated. Mechanisms were explored based on the lubrication, swelling effect and structural changes of macromolecular chains or segments in terms of their mobility. This study is expected to aid in understanding the responses of natural biological materials to environmental stimuli and to provide useful information for synthetic shape memory materials from the bio-inspiration perspective. (C) 2015 Elsevier Ltd. All rights reserved.
部门归属	[liu, z. q. ; jiao, d. ; zhang, z. f.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china
关键词	Shape Memory Viscoelasticity Mechanical Properties Keratin Biomimetic Material
资助者	National Natural Science Foundation of China [51331007]; IMR SYNL-T.S. Ke Research Fellowship; China Postdoctoral Science Foundation [2014M561263]
收录类别	sci
语种	英语
WOS记录号	WOS:000358806600002
引用统计	被引频次：58[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/75096
专题	中国科学院金属研究所
通讯作者	liuzq@imr.ac.cn; zhfzhang@imr.ac.cn
推荐引用方式 GB/T 7714	Liu, Z. Q.,Jiao, D.,Zhang, Z. F.,et al. Remarkable shape memory effect of a natural biopolymer in aqueous environment[J]. BIOMATERIALS,2015,65:13-21.
APA	Liu, Z. Q.,Jiao, D.,Zhang, Z. F.,liuzq@imr.ac.cn,&zhfzhang@imr.ac.cn.(2015).Remarkable shape memory effect of a natural biopolymer in aqueous environment.BIOMATERIALS,65,13-21.
MLA	Liu, Z. Q.,et al."Remarkable shape memory effect of a natural biopolymer in aqueous environment".BIOMATERIALS 65(2015):13-21.