Weak Hydrogen Bonding Enables Hard, Strong, Tough, and Elastic Hydrogels.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 26436409.
- Also identified by DOI 10.1002/adma.201503724.
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Abstract
A new type of "rigid and tough" hydrogel with excellent elasticity is designed by dense clustering of hydrogen bonds within a loose chemical network. The resultant hydrogel exhibits a good combination of high modulus (28 MPa), toughness (9300 J m(-3) ), extensibility (800%), and tensile stress (2 MPa). Furthermore, the gel displays good fatigue-resistance and complete and extremely fast recovery of shape and mechanical properties (3 min at 37°C).