Jyj. Uang et al., CHIRAL DISCRIMINATION IN LANGMUIR MONOLAYERS OF N-EICOSANOYLPROLINE METHYL-ESTER, Chemistry and physics of lipids, 75(2), 1995, pp. 163-169
Monolayers of chiral (L) and of racemic N-eicosanoylproline methyl eat
er have been investigated using surface pressure isotherm measurements
and Brewster angle microscopy. The surface pressure isotherms indicat
e differences between the chiral and racemic monolayers; however, the
differences appear somewhat smaller than those previously observed for
monolayers of other N-acylamino acids capable of amide-amide hydrogen
bonding. The surface pressure isotherms exhibit hysteresis during com
pression-expansion cycles. The domains formed on compression of both t
he racemic and chiral monolayers are small and irregular, in contrast
to the dendritic or curved domains previously observed for monolayers
of N-acylamino acids capable of amide-amide hydrogen bonding.