Effect of adding an amphiphilic solubilization improver, sucrose distearate, on the solubilization capacity of nonionic microemulsions

Citation
K. Aramaki et al., Effect of adding an amphiphilic solubilization improver, sucrose distearate, on the solubilization capacity of nonionic microemulsions, J COLL I SC, 236(1), 2001, pp. 14-19
Citations number
33
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF COLLOID AND INTERFACE SCIENCE
ISSN journal
0021-9797 → ACNP
Volume
236
Issue
1
Year of publication
2001
Pages
14 - 19
Database
ISI
SICI code
0021-9797(20010401)236:1<14:EOAAAS>2.0.ZU;2-7
Abstract
We have studied the effect of adding sucrose distearate (2C(18)SE) on the s olubilization capacity of microemulsions formed in the water/C12EO6/n-decan e system. Upon addition of 2C(18)SE to the binary water/C12EO6 system, a la mellar liquid crystal region developed. This suggests that the rigidity of the surfactant layer is strengthened. The solubilization of water and n-dec ane in the bicontinuous microemulsions increases about three times upon rep lacing 10% C12EO6 With 2C(18)SE; besides, the HLB temperature is not greatl y affected by 2C(18)SE. On the other hand, sucrose monostearate (C18SE) doe s not have such a function. The effect of added 2C(18)SE On the solubilizat ion capacity of the discrete droplet-type o/w or w/o microemulsions was als o studied. The efficiency of the solubilization-improving effect is reduced when the system is far from the HLB temperature. (C) 2001 Academic Press.