MELTING POINTS OF SYNTHETIC WAX ESTERS

Saturated, monoenoic and dienoic wax esters, C26-C40, have been synthesized from even-numbered fatty alcohols and acids. In homologous series of saturated esters, the increments of melting points follow a regular trend except for those esters which have an acid moiety two carbon atoms shorter than the alcohol moiety. These wax esters have melting points higher than interpolation would predict. Monoenoic wax esters with the double bond in the alcohol chain have melting points about 10 C higher than their isomers with the double bond in the acid chain. © 1969 American Oil Chemists' Society.