ICCAS OpenIR
Cooking-Inspired Versatile Design of an Ultrastrong and Tough Polysaccharide Hydrogel through Programmed Supramolecular Interactions
Wang, Lili; Zhang, Xiansheng; Xia, Yanzhi; Zhao, Xianwei; Xue, Zhixin; Sui, Kunyan; Dong, Xia; Wang, Dujin
2019-08-25
Source PublicationADVANCED MATERIALS
ISSN0935-9648
AbstractSimultaneously achieving strength and toughness in soft materials remains a challenge, especially for physically crosslinked hydrogels with many inactive interaction sites. In this work, inspired by the cooking of thick soup in China, a facile method that includes free water evaporation of the diluted pregel solution followed by crosslinking (WEC) is proposed to fabricate polysaccharide hydrogels. Herein, without the constraints of viscosity and crosslinking, polymer chains can homogenously approach as much as possible, thereby enabling the transformation of inactive supramolecular interaction (H-bonding and ionic coordination) sites into active sites until reaching the maximum level. Through facilely tuning the concentrating degree, programmed supramolecular interactions, serving as energy-dissipating sacrificial bonds, impart the hydrogels with strength and toughness over a very wide range, where a "ductile-to-tough" transition is discovered to occur first. Using WEC in alginate, the concentration can be as high as 25 wt% without sacrificing processing ability, a result that is significantly beyond common value (3-7 wt%), and the extremely stiff and tough hydrogels are obtained, superior to isotropic alginate hydrogels ever reported. This research offers a facile and versatile strategy to fabricate isotropic polysaccharide hydrogels, which become ideal matrix materials for further fabrication of hybrid or anisotropic hydrogels.
DOI10.1002/adma.201902381
Indexed BySCI
Language英语
WOS IDWOS:000483160900001
EI Accession Number1521-4095
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/82641
Collection中国科学院化学研究所
AffiliationChinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Wang, Lili,Zhang, Xiansheng,Xia, Yanzhi,et al. Cooking-Inspired Versatile Design of an Ultrastrong and Tough Polysaccharide Hydrogel through Programmed Supramolecular Interactions[J]. ADVANCED MATERIALS,2019.
APA Wang, Lili.,Zhang, Xiansheng.,Xia, Yanzhi.,Zhao, Xianwei.,Xue, Zhixin.,...&Wang, Dujin.(2019).Cooking-Inspired Versatile Design of an Ultrastrong and Tough Polysaccharide Hydrogel through Programmed Supramolecular Interactions.ADVANCED MATERIALS.
MLA Wang, Lili,et al."Cooking-Inspired Versatile Design of an Ultrastrong and Tough Polysaccharide Hydrogel through Programmed Supramolecular Interactions".ADVANCED MATERIALS (2019).
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