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Title: Studies of solubilized micellar solutions. Pt. 1. Phase studies and particle size analysis of solutions formed with nonionic surfactants

Abstract

The preparation and physical properties of oil/water solubilized micellar solutions (so-called microemulsions) containing liquid paraffin, glycerol, water, and blends of Tween 60 and Span 80 have been examined. Turbidity-spectra methods of particle sizing have shown that an increase of temperature of preparation over the range 25 to 80/sup 0/C led to a gradual decrease in the modal diameter and the half-width of the size distribution curve. Phase diagram studies on micellar solutions prepared at 70/sup 0/C have indicated a pronounced dependence of the area of existence of clear solutions on the ratio of Tween to Span in the system and on the oil content. Light-scattering investigations on these systems have indicated micelle diameters of between 13 and 45 nm. In general, micellar size was increased by increasing the oil content and by decreasing the surfactant/glycerol ratio. No significant effect on micellar diameter was detected as the Tween/Span molar ratio was varied between 1.0 and 1.6. (12 refs.)

Authors:
; ;
Publication Date:
Research Org.:
Manchester Univ
OSTI Identifier:
6733915
Resource Type:
Journal Article
Journal Name:
J. Colloid Interface Sci.; (United States)
Additional Journal Information:
Journal Volume: 46:2
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; MICROEMULSIONS; CHEMICAL COMPOSITION; PHASE STUDIES; EVALUATION; MEDIUM TEMPERATURE; PARTICLE SIZE; SURFACTANTS; COLLOIDS; DISPERSIONS; EMULSIONS; SIZE; 400301* - Organic Chemistry- Chemical & Physicochemical Properties- (-1987); 360602 - Other Materials- Structure & Phase Studies

Citation Formats

Attwood, D, Currie, L R.J., and Elworthy, P H. Studies of solubilized micellar solutions. Pt. 1. Phase studies and particle size analysis of solutions formed with nonionic surfactants. United States: N. p., 1974. Web. doi:10.1016/0021-9797(74)90008-3.
Attwood, D, Currie, L R.J., & Elworthy, P H. Studies of solubilized micellar solutions. Pt. 1. Phase studies and particle size analysis of solutions formed with nonionic surfactants. United States. doi:10.1016/0021-9797(74)90008-3.
Attwood, D, Currie, L R.J., and Elworthy, P H. Fri . "Studies of solubilized micellar solutions. Pt. 1. Phase studies and particle size analysis of solutions formed with nonionic surfactants". United States. doi:10.1016/0021-9797(74)90008-3.
@article{osti_6733915,
title = {Studies of solubilized micellar solutions. Pt. 1. Phase studies and particle size analysis of solutions formed with nonionic surfactants},
author = {Attwood, D and Currie, L R.J. and Elworthy, P H},
abstractNote = {The preparation and physical properties of oil/water solubilized micellar solutions (so-called microemulsions) containing liquid paraffin, glycerol, water, and blends of Tween 60 and Span 80 have been examined. Turbidity-spectra methods of particle sizing have shown that an increase of temperature of preparation over the range 25 to 80/sup 0/C led to a gradual decrease in the modal diameter and the half-width of the size distribution curve. Phase diagram studies on micellar solutions prepared at 70/sup 0/C have indicated a pronounced dependence of the area of existence of clear solutions on the ratio of Tween to Span in the system and on the oil content. Light-scattering investigations on these systems have indicated micelle diameters of between 13 and 45 nm. In general, micellar size was increased by increasing the oil content and by decreasing the surfactant/glycerol ratio. No significant effect on micellar diameter was detected as the Tween/Span molar ratio was varied between 1.0 and 1.6. (12 refs.)},
doi = {10.1016/0021-9797(74)90008-3},
journal = {J. Colloid Interface Sci.; (United States)},
number = ,
volume = 46:2,
place = {United States},
year = {1974},
month = {2}
}