Jump to main content
Jump to site search


Improvement and tuning of the performance of light-healable polymers by variation of the monomer content

Author affiliations

Abstract

Photo-healable crosslinked epoxy polymers were produced by combining two commercially available epoxy monomers with a newly sythesised diamine crosslinker (APCD). The crosslinker contains a photocleavable unit in the centre which allows decrosslinking and recrosslinking of the crosslinked polymer network under different UV wavelengths. This behaviour was shown to give rise to the ability to heal a surface scratch after irradiation with 254 nm UV light, and subsequent 365 nm irradiation leads to almost complete recovery of the original coating properties. Three epoxy monomer systems were used to demonstrate the ability to tune the polymer's properties without compromising the healing performance: two single epoxy polymers (APCD/PDE and APCD/BDE) were prepared and a third polymer was prepared by mixing the two monomers in a 50 : 50 mixture (APCD/BP50). It was found that the rigid polymer had a poor healing ability compared to the flexible polymer but the 50 : 50 mixture polymer had the coating performance of the rigid polymer and the healing ability of the flexible polymer.

Graphical abstract: Improvement and tuning of the performance of light-healable polymers by variation of the monomer content

Back to tab navigation

Supplementary files

Publication details

The article was received on 14 Aug 2018, accepted on 26 Oct 2018 and first published on 29 Oct 2018


Article type: Paper
DOI: 10.1039/C8PY01203B
Citation: Polym. Chem., 2018, Advance Article
  •   Request permissions

    Improvement and tuning of the performance of light-healable polymers by variation of the monomer content

    T. Hughes, G. P. Simon and K. Saito, Polym. Chem., 2018, Advance Article , DOI: 10.1039/C8PY01203B

Search articles by author

Spotlight

Advertisements