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ACS Appl Mater Interfaces. 2019 May 17. doi: 10.1021/acsami.9b02521. [Epub ahead of print]

Light-Healable Epoxy Polymer Networks via Anthracene Dimer Scission of Diamine Crosslinker.

Abstract

Two anthracene-based diamine crosslinkers were used to cure a range of commercially available monomers to produce four highly photoreversible crosslinked epoxy polymers. Through careful selection of the epoxy monomers used, the properties of the resultant polymer networks were varied to create a coating material that possessed room-temperature light-stimulated healing. Of the four coatings created, the best healing performance was exhibited by the two most flexible systems, both of these also exhibited the thermal and mechanical performance necessary for coatings. By using anthracene, the utilization of a wide range of wavelengths in the healing process is possible, which in applications such as industrial coatings would be of significant benefit.

KEYWORDS:

anthracene; coatings; crosslink; cycloaddition; diamine; epoxy; light; self-healing

PMID:
31062582
DOI:
10.1021/acsami.9b02521

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