Synthesis and physical properties of methyl glycoside linked to triazole surfactants

Abstract

New heterocyclic compounds containing methyl glycoside were synthesized from available and renewable starting materials through click chemistry coupling.  The row materials for this synthesis are methyl glycoside, both saturated (C12) and unsaturated (C18) fatty acids. The aim from this synthesis focus on synthesis of new water-in- oil emulsifier. Multi-step synthetic strategy was applied in this methodology, including activation of hydroxyl group at C6 of the methyl glycoside, functionalization of the activated atom and  finally  coupling  with  fatty  acids  derivatives  by  using  click  chemistry technique. The target compounds were identified and their purity confirmed by NMR type 1H and 13C in addition to high resolution mass spectroscopy.  Lyotropic  phases  were  investigated by Optical Polarizing  Microscopy (OPM) contact  penetration  with  water,  Differential  Scanning  Calorimetry  (DSC)  was used to used to study the physical properties of the synthesized compounds . While the DuNouy ring approach measured the surface tension.  The latter enables the determination of critical micelle concentrations