Enhancing mechanical performance of a covalent self-healing material by sacrificial noncovalent bonds.


Journal Article

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.

Full Text

Cited Authors

  • Neal, JA; Mozhdehi, D; Guan, Z

Published Date

  • April 2015

Published In

Volume / Issue

  • 137 / 14

Start / End Page

  • 4846 - 4850

PubMed ID

  • 25790015

Pubmed Central ID

  • 25790015

Electronic International Standard Serial Number (EISSN)

  • 1520-5126

International Standard Serial Number (ISSN)

  • 0002-7863

Digital Object Identifier (DOI)

  • 10.1021/jacs.5b01601


  • eng