The DOI matches its Crossref record; 38 of the 38 references it cites were found in a registry or an index.
A Solvent‐Exchange Strategy to Regulate Noncovalent Interactions for Strong and Antiswelling Hydrogels
Abstract
Physical hydrogels from existing polymers consisting of noncovalent interacting networks are highly desired due to their well‐controlled compositions and environmental friendliness; and therefore, applied as adhesives, artificial tissues, and soft machines. Nevertheless, these gels have suffered from weak mechanical strength and low water resistance. Current methodologies used to fabricate these hydrogels mainly involve the freezing–thawing process (cryogels), which are complicated in preparation and short in adjustment of polymer conformation. Here, taking the merits of noncovalent bonds in adjustability and reversibility, a solvent‐exchange strategy is developed to construct a class of exogels. Based on the exchange from a good solvent subsequently to a poor one, the intra‐ and interpolymer interactions are initially suppressed and then recovered, resulting in dissolving and cross‐linking to polymers, respectively. Key to this approach is the good solvent, which favors of a stretched polymer conformation to homogenize the network, forming cross‐linked hydrogel networks with remarkable stiffness, toughness, antiswelling properties, and thus underwater adhesive performance. The exogels highlight a facile but highly effective strategy of turning the solvent and consequently the noncovalent interactions to achieve the rational design of enhanced hydrogels and hydrogel‐based soft materials.
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Cites
Highly stretchable and tough hydrogels
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Physical hydrogels composed of polyampholytes demonstrate high toughness and viscoelasticity
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Cited by
Bioinspired Underwater Adhesives
Fan, H., & Gong, J. P. (2021) · Advanced Materials · doi:10.1002/adma.202102983 · Cited by 466
Making Highly Elastic and Tough Hydrogels from Doughs
Nian, G., Kim, J., Bao, X., & Suo, Z. (2022) · Advanced Materials · doi:10.1002/adma.202206577 · Cited by 268
Wu, Z., Shi, W., Ding, H., Zhong, B., Huang, W., Zhou, Y., Gui, X., Xie, X., & Wu, J. (2021) · Journal of Materials Chemistry C · doi:10.1039/d1tc02506f · Cited by 121
Metadata
- Authors
- Xu, L., Gao, S., Guo, Q., Wang, C., Qiao, Y., & Qiu, D.
- Venue
- Advanced Materials
- Publisher
- Wiley
- Published
- 2020-11-09
- Volume
- 32
- Issue
- 52
- Pages
- e2004579-e2004579
- ISSN
- 0935-9648 (ISSN-L)
- 1521-4095
- OpenAlex
- W3104035922
- Cited by
- 465
- References
- 38
- FWCI
- 13.76
- Type
- journal article
- Language
- en
- Open access
- closed
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- Xu, L., Gao, S., Guo, Q., Wang, C., Qiao, Y., & Qiu, D. (2020). A Solvent‐Exchange Strategy to Regulate Noncovalent Interactions for Strong and Antiswelling Hydrogels. Advanced Materials. https://doi.org/10.1002/adma.202004579
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