Abstract
The mechanical strength of supramolecular gels is usually low compared to that of cross-linked polymer gels, which sometimes limits practical applications of supramolecular gels. We report here photoinduced reinforcement of supramolecular gel structures using photodimerization of coumarin moieties introduced on a trans-(1R,2R)-1,2-cyclohexanediamine-based gelator. UV irradiation (λ > 300 nm) of toluene gels containing mixtures of trans-(1R,2R)-1,2-cyclohexanediamine-based gelators with and without coumarin moieties induced an enhancement in both the thermal and mechanical stabilities of the gels.
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