The DOI matches its Crossref record; 48 of the 48 references it cites were found in a registry or an index.
Self-Healable, Tough, and Ultrastretchable Nanocomposite Hydrogels Based on Reversible Polyacrylamide/Montmorillonite Adsorption
Abstract
Nanocomposite hydrogels with unprecedented stretchability, toughness, and self-healing have been developed by in situ polymerization of acrylamide with the presence of exfoliated montmorillonite (MMT) layers as noncovalent cross-linkers. The exfoliated MMT clay nanoplatelets with high aspect ratios, as confirmed by transmission electron microscopy (TEM) and X-ray diffraction (XRD) results, are well dispersed in the polyacrylamide matrix. Strong polymer/MMT interaction was confirmed by Fourier transform infrared spectroscopy (FTIR) and differential scanning calorimetry (DSC). The effective cross-link densities of these hydrogels are estimated in the range of 2.2-5.7 mol m(-3). Uniaxial tensile tests showed a very high fracture elongation up to 11 800% and a fracture toughness up to 10.1 MJ m(-3). Cyclic loading-unloading tests showed remarkable hysteresis, which indicates energy dissipation upon deformation. Residual strain after cyclic loadings could be recovered under mild conditions, with the recovery extent depending on clay content. A mechanism based on reversible desorption/adsorption of polymer chains on clay platelets surface is discussed. Finally, these nanocomposite hydrogels are demonstrated to fully heal by dry-reswell treatments.
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Cites
Highly stretchable and tough hydrogels
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Ultrastrong and Stiff Layered Polymer Nanocomposites
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Redox-responsive self-healing materials formed from host–guest polymers
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Zhang, K., Feng, Q., Fang, Z., Gu, L., & Bian, L. (2021) · Chemical Reviews · doi:10.1021/acs.chemrev.1c00071 · Cited by 394
Hua, D., Gao, S., Zhang, M., Ma, W., & Huang, C. (2020) · Carbohydrate Polymers · doi:10.1016/j.carbpol.2020.116743 · Cited by 160
Cao, Y., Hassan, M., Cheng, Y., Chen, Z., Wang, M., Zhang, X., Haider, Z., & Zhao, G. (2019) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.9b02887 · Cited by 54
Metadata
- Authors
- Gao, G., Du, G., Sun, Y., & Fu, J.
- Venue
- ACS Applied Materials & Interfaces
- Publisher
- American Chemical Society (ACS)
- Published
- 2015-02-18
- Volume
- 7
- Issue
- 8
- Pages
- 5029-5037
- ISSN
- 1944-8244 (ISSN-L)
- 1944-8252
- OpenAlex
- W2329807175
- Cited by
- 331
- References
- 48
- FWCI
- 13.02
- Type
- journal article
- Language
- en
- Open access
- closed
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- Gao, G., Du, G., Sun, Y., & Fu, J. (2015). Self-Healable, Tough, and Ultrastretchable Nanocomposite Hydrogels Based on Reversible Polyacrylamide/Montmorillonite Adsorption. ACS Applied Materials & Interfaces. https://doi.org/10.1021/acsami.5b00704
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