Bis amide-aromatic-ureasd - highly effective hydro- and organogelator systems

Baker, B.C., Acton, A., Stevens, G.C. and Hayes, W. ORCID: https://orcid.org/0000-0003-0047-2991 (2014) Bis amide-aromatic-ureasd - highly effective hydro- and organogelator systems. Tetrahedron, 70 (44). pp. 8303-8311. ISSN 0040-4020 doi: 10.1016/j.tet.2014.09.017

Abstract/Summary

A series of hydro- and organo-supergelators have been synthesised via coupling of simple bis aromaticureas via alkyl amide linkages. These bis amide-aromatic-ureas exhibited reduced critical gelator concentrations, improved gelator stability, mechanical and dye removal properties for potential use in water purification, in comparison to related bis aromatic-ureas. Systematic structure studies via variation of the bis amide-aromatic-urea linker length as well as functionalization of the terminal aromatic moieties have enabled control over the gel properties.