NIMTE OpenIR  > 2018专题
Macroscopic assembly of oppositely charged polyelectrolyte hydrogels
Li, Jinhui; Xu, Zuxiang; Xiao, Ying; Gao, Guorong; Chen, Jing; Yin, Jingbo; Fu, Jun
2018
Source PublicationJOURNAL OF MATERIALS CHEMISTRY B
Volume6Issue:2Pages:257-264
AbstractStimulus-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.
KeywordShape Transformations Adhesion Tough Gels Actuators Behavior
Subject AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
Language英语
Document Type期刊论文
Identifierhttp://ir.nimte.ac.cn/handle/174433/16875
Collection2018专题
Recommended Citation
GB/T 7714
Li, Jinhui,Xu, Zuxiang,Xiao, Ying,et al. Macroscopic assembly of oppositely charged polyelectrolyte hydrogels[J]. JOURNAL OF MATERIALS CHEMISTRY B,2018,6(2):257-264.
APA Li, Jinhui.,Xu, Zuxiang.,Xiao, Ying.,Gao, Guorong.,Chen, Jing.,...&Fu, Jun.(2018).Macroscopic assembly of oppositely charged polyelectrolyte hydrogels.JOURNAL OF MATERIALS CHEMISTRY B,6(2),257-264.
MLA Li, Jinhui,et al."Macroscopic assembly of oppositely charged polyelectrolyte hydrogels".JOURNAL OF MATERIALS CHEMISTRY B 6.2(2018):257-264.
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