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Photohealable ion gels based on the reversible dimerisation of anthracene.

We report a photohealable ion gel based on the photodimerisation of anthracene as a dynamic covalent bond. A tetra-arm poly(ethylene glycol) terminally functionalised with anthracene was synthesised and combined with an ionic liquid to form an ion gel. The photodimerisation reaction was utilised to realise photohealing of the ion gels.