Super tough, ultra-stretchable, and fast recoverable double network hydrogels physically crosslinked by triple non-covalent interactions

doi:10.1016/j.polymer.2020.122319

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 > 2020专题

	Super tough, ultra-stretchable, and fast recoverable double network hydrogels physically crosslinked by triple non-covalent interactions
	Zhou, Linjie ; Pei, Xinjie ; Fang, Kun ; Zhang, Rui ; Fu, Jun
刊名	POLYMER
	2020
卷号	192
关键词	TRIBLOCK COPOLYMER MICELLES HIGH-STRENGTH CONETWORKS POLYELECTROLYTE FABRICATION MECHANISM DESIGN PEG
DOI	10.1016/j.polymer.2020.122319
英文摘要	Incorporating sacrificial bonds into hydrogels networks has been demonstrated an efficient way to obtain ultrahigh strength, but is usually at the expense of flexibility and recoverability. This study demonstrates novel triple physically crosslinked hydrogels with very high stretchability, toughness and rapid self-recovery at ambient conditions. Physically crosslinked kappa-carrageenan acts as the first network to host free radical copolymerization of polymers with Pluronic F127 diacrylate micelles. Hydrophobic association of micelles in the second network contributes to outstanding stretchability (over 1100%) and toughness (10.83 MJ/m(3)). Further crosslinking of the second network through tridentate Fe3+-COO- coordination significantly enhances the fracture strength up to 2.7 MPa, and elastic modulus 1171 kPa. Systematic investigations demonstrate the key roles played by non-covalent crosslinking on energy dissipation during loadings and the damaged non-covalent networks could recover 40% toughness in 1 min at ambient conditions. These hydrogels are promising for applications as biocompatible load-bearing materials.
学科主题	Polymer Science
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/19853]
专题	2020专题
作者单位	1.Zhang, R (corresponding author), East China Univ Sci & Technol, State Key Lab Chem Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China. 2.Fu, J (corresponding author), Sun Yat Sen Univ, Sch Mat Sci & Engn, Guangzhou 510275, Peoples R China.
推荐引用方式 GB/T 7714	Zhou, Linjie,Pei, Xinjie,Fang, Kun,et al. Super tough, ultra-stretchable, and fast recoverable double network hydrogels physically crosslinked by triple non-covalent interactions[J]. POLYMER,2020,192.
APA	Zhou, Linjie,Pei, Xinjie,Fang, Kun,Zhang, Rui,&Fu, Jun.(2020).Super tough, ultra-stretchable, and fast recoverable double network hydrogels physically crosslinked by triple non-covalent interactions.POLYMER,192.
MLA	Zhou, Linjie,et al."Super tough, ultra-stretchable, and fast recoverable double network hydrogels physically crosslinked by triple non-covalent interactions".POLYMER 192(2020).