The DOI matches its Crossref record; 31 of the 31 references it cites were found in a registry or an index.
High-Strength, Tough, Fatigue Resistant, and Self-Healing Hydrogel Based on Dual Physically Cross-Linked Network
Abstract
Hydrogels usually suffer from low mechanical strength, which largely limit their application in many fields. In this Research Article, we prepared a dual physically cross-linked hydrogel composed of poly(acrylamide-co-acrylic acid) (PAM-co-PAA) and poly(vinyl alcohol) (PVA) by simple two-steps methods of copolymerization and freezing/thawing. The hydrogen bond-associated entanglement of copolymer chains formed as cross-linking points to construct the first network. After being subjected to the freezing/thawing treatment, PVA crystalline domains were formed to serve as knots of the second network. The hydrogels were demonstrated to integrate strength and toughness (1230 ± 90 kPa and 1250 ± 50 kJ/m(3)) by the introduction of second physically cross-linked network. What̀s more, the hydrogels exhibited rapid recovery, excellent fatigue resistance, and self-healing property. The dynamic property of the dual physically cross-linked network contributes to the excellent energy dissipation and self-healing property. Therefore, this work provides a new route to understand the toughness mechanism of dual physically cross-linked hydrogels, hopefully promoting current hydrogel research and expanding their applications.
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Metadata
- Authors
- Gong, Z., Zhang, G., Zeng, X., Li, J., Li, G., Huang, W., Sun, R., & Wong, C.
- Venue
- ACS Applied Materials & Interfaces
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-08-29
- Volume
- 8
- Issue
- 36
- Pages
- 24030-24037
- ISSN
- 1944-8244 (ISSN-L)
- 1944-8252
- OpenAlex
- W2508301070
- Cited by
- 365
- References
- 31
- FWCI
- 14.04
- Type
- journal article
- Language
- en
- Open access
- closed
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