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Tough, Stretchable, Compressive Novel Polymer/Graphene Oxide Nanocomposite Hydrogels with Excellent Self-Healing Performance
Abstract
Designing hydrogels with high mechanical properties without sacrificing their self-healing efficiencies remains great challenges. We have fabricated cationic polyacrylamide/graphene oxide (GO) hydrogels by free-radical polymerization of acrylamide (AM) and 2-(dimethylamino)ethylacrylatemethochloride (DAC) in the presence of GO. The mechanical properties and self-healing ability can be tuned by the GO content and the mass ratio of AM and DAC. The ionic bonds between DAC and GO and the hydrogen bonds between AM and GO can efficiently dissipate energy and rebuild the networks. The resulting composite hydrogels possess high stiffness (Young’s modulus: ∼1.1 MPa), high toughness (∼9.3 MJ m –3 ), and high fatigue resistance, as well as high self-healing efficiency (>92% of tensile strength, >99% of tensile strain and >93% of toughness). In addition, the completely dried hydrogels can recover their original mechanical values by spraying water and still possess outstanding self-healing efficiency. Our design can provide better fundamental understanding of physical properties of hydrogels and should enable the development of tough, self-healing hydrogels for practical applications.
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Cites
Dynamic Covalent Polymer Networks: from Old Chemistry to Modern Day Innovations
Zou, W., Dong, J., Luo, Y., Zhao, Q., & Xie, T. (2017) · Advanced Materials · doi:10.1002/adma.201606100 · Cited by 1,014
Edsall, J. T. (1937) · The Journal of Chemical Physics · doi:10.1063/1.1750013 · Cited by 132
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Ge, G., Zhang, Y., Shao, J., Wang, W., Si, W., Huang, W., & Dong, X. (2018) · Advanced Functional Materials · doi:10.1002/adfm.201802576 · Cited by 579
Nanocomposite hydrogel-based strain and pressure sensors: a review
Sun, X., Yao, F., & Li, J. (2020) · Journal of Materials Chemistry A · doi:10.1039/d0ta06965e · Cited by 420
Extrusion 3D Printing of Polymeric Materials with Advanced Properties
Jiang, Z., Diggle, B., Tan, M. L., Viktorova, J., Bennett, C. W., & Connal, L. A. (2020) · Advanced Science · doi:10.1002/advs.202001379 · Cited by 408
Wu, J., Wu, Z., Xu, H., Wu, Q., Liu, C., Yang, B.-R., Gui, X., Xie, X., Tao, K., Shen, Y., et al. (2019) · Materials Horizons · doi:10.1039/c8mh01160e · Cited by 391
Metadata
- Authors
- Pan, C., Liu, L., Chen, Q., Zhang, Q., & Guo, G.
- Venue
- ACS Applied Materials & Interfaces
- Publisher
- American Chemical Society (ACS)
- Published
- 2017-10-23
- Volume
- 9
- Issue
- 43
- Pages
- 38052-38061
- ISSN
- 1944-8244 (ISSN-L)
- 1944-8252
- OpenAlex
- W2763826011
- Cited by
- 187
- References
- 2
- FWCI
- 8.32
- Type
- journal article
- Language
- en
- Open access
- closed
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- Pan, C., Liu, L., Chen, Q., Zhang, Q., & Guo, G. (2017). Tough, Stretchable, Compressive Novel Polymer/Graphene Oxide Nanocomposite Hydrogels with Excellent Self-Healing Performance. ACS Applied Materials & Interfaces. https://doi.org/10.1021/acsami.7b12932
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