Grasas y Aceites, Vol 42, No 5 (1991)

Monolayers of fatty acids. III. Palmitic, Laurie and Oleic Acids on aqueous solutions containig solutes with alcoholic functional groups


https://doi.org/10.3989/gya.1991.v42.i5.1218

J. M. Rodríguez Patino
Departamento de Ingeniería Química. Facultad de Química. Universidad de Sevilla, Spain

J. de la Fuente Feria
Departamento de Ingeniería Química. Facultad de Química. Universidad de Sevilla, Spain

O. Gómez Herrera
Departamento de Ingeniería Química. Facultad de Química. Universidad de Sevilla, Spain

Abstract


The influence exerted by the length or the insaturation of acyl chain on characteristics of fatty acid monolayers spread on aqueous solutions containing ethanol, glycerol, glucose or sucrose, is studied using a Langmuir type surface balance.
The monolayer stability is function of acyl chain length and presence of insaturation. Generally, the factors decreasing monolayer stability can help transformations towards configurations with more expanded structures.

Keywords


Aqueous solution of hydroxylic molecules; Lauric (acid); Oleic (acid); Palmitic (acid); Surface balance

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