Journal
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
Volume 30, Issue 9, Pages 1262-1272Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/01932690902735165
Keywords
Cosurfactant; dilution; structural parameter; thermodynamics; water-in-oil microemulsion
Categories
Funding
- University Grants Commission, New Delhi, India
- Indian National Science Academy
Ask authors/readers for more resources
Interfacial behavior, structural, and thermodynamic parameters in relation to the formation of water-in-oil (w/o) microemulsion (mu E) with varied surfactant head groups and cosurfactants have been evaluated through dilution technique at different temperature and [water]/[surfactant] mole ratio. Dodecyltrimethylammonium bromide (DTAB), sodium dodecylsulphate (SDS), and polyoxyethylene sorbitan monolaurate (Tween-20) were used as surfactants and n-butanol and n-pentanol were used as cosurfactants. Distribution of cosurfactants between bulk oil and the interface using fixed amount of surfactant at varied [water]/[surfactant] mole ratio and temperature has been studied to evaluate thermodynamic parameters. Associated structural parameters, such as droplet dimension and aggregation number of surfactant and cosurfactant at the droplet interface, have also been evaluated. Spontaneity of the mu E formation followed the order DTAB>SDS>Tween-20 for both butanol and pentanol in the studied range of temperature. Correlations of the results in terms of the evaluated physicochemical parameters have been attempted.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available