Simple,
effective, and eco-friendly sugar-based phase-selective
gelators were synthesized at a low cost. They showed high gelling
ability toward a wide range of solvents at lower concentrations (minimum
gelation concentration ∼0.3%). Preliminary tests reveal that
these low molecular weight organogelators can immediately and phase-selectively
gel benzene, toluene, petrol, and kerosene in water at room temperature.
We also identified G13 in toluene as the good gelator, and the corresponding
organogel proficiently removes water-soluble dyes from their concentrated
aqueous solutions. This efficient removal of toxic organic solvents
and dyes from water suggests promising applications in removing organic
substances from contaminated water resources. The thermoreversible
gel exhibits effective rechargeability up to five cycles of burning
and gelation, which imply the flame stability of the gel. Interestingly,
these compounds had a high detection ability toward Cu2+ ions with a state change from gel to the solution. The physical
justification for gelation mechanisms and the molecular interaction
with metal ions were further confirmed by computational studies.
A novel class of methyltriglycol benzohydrazide based N-glycosylamines containing long alkyl chain derivatives were synthesized in good yield and characterized using NMR (1H and 13C) spectral analysis.
A new class of benzimidazole-carbazole-N-glycosylamines were synthesized and self-assembled through non-covalent interaction into mechanically and thermally stable organogels with nanofibrous morphology.
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