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Light triggered self-healing of polyacrylate polymers crosslinked with 7-methacryloyoxycoumarin crosslinker

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Abstract

A new light-responsive crosslinker containing a coumarin photosensitive unit has been synthesised and was used in reactions with a range of acrylate monomers (butylmethyl acrylate (BMA), methyl acrylate (MA), hexyl methacrylate (HMA) and ethyl acrylate (EA)) to form crosslinked polyacrylates. The self healing ability of the resulting polymeric networks was determined by observing the visual disappearance of surface scratches on thin films due to the application of UV light only, or in some cases UV light accompanied by heating. Hardness tests were used as a measure of the mechanical properties of the cross-linked polymer films, both before and after healing.

Graphical abstract: Light triggered self-healing of polyacrylate polymers crosslinked with 7-methacryloyoxycoumarin crosslinker

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Publication details

The article was received on 17 Aug 2017, accepted on 27 Aug 2017 and first published on 28 Aug 2017


Article type: Paper
DOI: 10.1039/C7PY01385J
Citation: Polym. Chem., 2017, Advance Article
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    Light triggered self-healing of polyacrylate polymers crosslinked with 7-methacryloyoxycoumarin crosslinker

    M. Abdallh, M. T. W. Hearn, G. P. Simon and K. Saito, Polym. Chem., 2017, Advance Article , DOI: 10.1039/C7PY01385J

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