Enhancing Mechanical Performance of a Covalent Self-Healing Material by Sacrificial Noncovalent Bonds
Top Cited Papers
- 1 April 2015
- journal article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 137 (14), 4846-4850
- https://doi.org/10.1021/jacs.5b01601
Abstract
Polymers that repair themselves after mechanical damage can significantly improve their durability and safety. A major goal in the field of self-healing materials is to combine robust mechanical and efficient healing properties. Here, we show that incorporation of sacrificial bonds into a self-repairable network dramatically improves the overall mechanical properties. Specifically, we use simple secondary amide side chains to create dynamic energy dissipative hydrogen bonds in a covalently cross-linked polymer network, which can self-heal via olefin cross-metathesis. We envision that this straightforward sacrificial bonding strategy can be employed to improve mechanical properties in a variety of self-healing systems.Keywords
Funding Information
- US Department of Energy (DE-FG02-04ER46162)
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