Gelation properties of N,N-bis(3,4,5-tris(heptyloxy)benzoyl)fumarohydrazide in toluene and ethanol

The studies of the gel-to-sol phase transition made by low molecular weight organogelator N,N-bis(3,4,5-tris(heptyloxy)benzoyl)fumarohydrazide (T7fuma) with toluene and ethanol as the solvents were reported. T7fuma was considered as a supergelator with higher Tg and lower critical gelation concentrations because of stronger intermolecular hydrogen bond. The solvent was important in controlling the photophysical properties of the solution. The aggregation-induced enhanced emission phenomenon was found in the ethanol gel. Microscopic structures were affected by gelling solvent, the morphology of the toluene xerogel presented homogeneous distribution, while that of the ethanol xerogel presented aggregates with inhomogeneous density, which provided a rough surface having superhydrophobicity.

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