Enhancing Mechanical Performance of a Covalent Self-Healing Material by Sacrificial Noncovalent Bonds

James A. Neal, Davoud Mozhdehi, Zhibin Guan

Research output: Contribution to journalArticle

203 Scopus citations

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. (Graph Presented).

Original languageEnglish (US)
Pages (from-to)4846-4850
Number of pages5
JournalJournal of the American Chemical Society
Volume137
Issue number14
DOIs
StatePublished - Apr 15 2015
Externally publishedYes

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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