Hydrazinoazadipeptides as aromatic solvent gelators
作者:Annie Carré、Philippe Le Grel、Michèle Baudy-Floc'h
DOI:10.1016/s0040-4039(01)00035-1
日期:2001.3
In the presence of a small amount of HCl, hydrazinoazadipeptides form thermoreversible physical gels with aromatic solvents. These gels are stable to 70-90 degreesC, and can be stored for months. Electron microscopy reveals that in these solvents. pseudopeptides self-assemble into elongated and very thin fibers, which in turn form a three-dimensional network that traps solvent molecules. Infrared studies showed that aggregation is accompanied by the formation of a hydrogen-bonded network between NH and CO of the hydrazinopeptides. (C) 2001 Elsevier Science Ltd. All rights reserved.