Tough and Self-Recoverable Hydrogels Crosslinked by Triblock Copolymer Micelles and Fe3+ Coordination

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

	Tough and Self-Recoverable Hydrogels Crosslinked by Triblock Copolymer Micelles and Fe3+ Coordination
	Fu, Jun; Nie, Lei; Yin, Jingbo; Chen, Jing; Cong, Yang; Wang, Zongbao; Gao, Guorong; Li, Jinhui; Xu, Zuxiang
刊名	JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
	2018
卷号	56 期号:11 页码:865-876
关键词	High Mechanical Strength Double-network Hydrogels Oppositely Charged Polyelectrolytes Polyion-complex Hydrogels Nanocomposite Hydrogels Physical Hydrogels Soft Dissipation Behavior
英文摘要	Tough hydrogels have great potentials in soft robotics, artificial muscles, tissue replacement, and so on. Here we introduce novel tough hydrogels crosslinked by triblock copolymer (F127DA) micelles and metal coordination. The gels showed outstanding tensile strength (similar to 1-11 MPa), toughness (similar to 4-32 MJ m(-3)), and excellent self-recovery properties (similar to 56.8-87.2% toughness recovery in 9 min at room temperature). The mechanical and self-recovery properties could be manipulated by varying contents of micelles and/or COO- groups. Dynamic mechanical analysis of the hydrogels revealed apparent activation energy and relaxations for both physical interactions. In situ small-angle X-ray scattering measurements on hydrogels upon stretching revealed micelle deformations. XPS measurements on hydrogels before and after stretching revealed significant changes in the binding energy of Fe3+ ions in the gels, suggesting the rupture of coordination bonds. The experimental results strongly suggest a synergistic effect from the micelle-crosslinking and Fe3+-COO- coordination on the strength, toughness, and self-recovery of the hydrogels. (C) 2018 Wiley Periodicals, Inc.
学科主题	Materials Science ; Physics
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/174433/17479]
专题	2018专题
推荐引用方式 GB/T 7714	Fu, Jun,Nie, Lei,Yin, Jingbo,et al. Tough and Self-Recoverable Hydrogels Crosslinked by Triblock Copolymer Micelles and Fe3+ Coordination[J]. JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,2018,56(11):865-876.
APA	Fu, Jun.,Nie, Lei.,Yin, Jingbo.,Chen, Jing.,Cong, Yang.,...&Xu, Zuxiang.(2018).Tough and Self-Recoverable Hydrogels Crosslinked by Triblock Copolymer Micelles and Fe3+ Coordination.JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,56(11),865-876.
MLA	Fu, Jun,et al."Tough and Self-Recoverable Hydrogels Crosslinked by Triblock Copolymer Micelles and Fe3+ Coordination".JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 56.11(2018):865-876.