Macroscopic assembly of oppositely charged polyelectrolyte hydrogels

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2018专题

	Macroscopic assembly of oppositely charged polyelectrolyte hydrogels
	Fu, Jun; Yin, Jingbo; Chen, Jing; Gao, Guorong; Xiao, Ying; Xu, Zuxiang; Li, Jinhui
刊名	JOURNAL OF MATERIALS CHEMISTRY B
	2018
卷号	6 期号:2 页码:257-264
关键词	Shape Transformations Adhesion Tough Gels Actuators Behavior
英文摘要	Stimulus-responsive hydrogels are assembled into soft devices that transform their shape upon external stimuli. It is very important to understand the macroscopic assembly mechanisms and to modulate the interface stability of assemblies. In this study, polyelectrolyte hydrogels with outstanding mechanical performances and opposite charges were assembled into soft devices via electrostatic association. The interface strength could be tuned by varying the net charge density, which depends on the concentration of charged/chargeable monomers, the pH of the buffer solution, and the ionic strength of the solution. We propose that charge screening at the interface by free counterions causes a reduction of interface strength, whereas charge redistribution is helpful to strengthen the interface of the assemblies. The understanding of macroscopic assembly mechanisms provides significant guidelines for designing novel soft transducers and drivers and engineering their interface strength.
学科主题	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
公开日期	2018-12-04
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/16875]
专题	2018专题
推荐引用方式 GB/T 7714	Fu, Jun,Yin, Jingbo,Chen, Jing,et al. Macroscopic assembly of oppositely charged polyelectrolyte hydrogels[J]. JOURNAL OF MATERIALS CHEMISTRY B,2018,6(2):257-264.
APA	Fu, Jun.,Yin, Jingbo.,Chen, Jing.,Gao, Guorong.,Xiao, Ying.,...&Li, Jinhui.(2018).Macroscopic assembly of oppositely charged polyelectrolyte hydrogels.JOURNAL OF MATERIALS CHEMISTRY B,6(2),257-264.
MLA	Fu, Jun,et al."Macroscopic assembly of oppositely charged polyelectrolyte hydrogels".JOURNAL OF MATERIALS CHEMISTRY B 6.2(2018):257-264.