Double-Tailed Surfactants: The Effect of Hydrocarbon Chain Structure on Phase Behavior.
Abstract
The formation by double-tailed surfactants of normal micelles in water, reverse micelles in a hydrocarbon solvent and microemulsions in surfactant/hydrocarbon/water systems was proposed to possess quantitative and qualitative differences from aggregation by the analogous single-tailed surfactants. In comparing the two classes, with respect to normal micelles the following questions were of interest: 1) how does micelle size change? 2) how does the extent of counterion binding change? 3) what transitions in micelle shape occur as surfactant concentration is increased? 4) how does the propensity for micellar growth with increasing surfactant concentration depend upon surfactant structure? The experimental techniques employed included conductimetry, EMF measurements (both surfactant-selective and counterion-selective electrodes were used), Sodium 23 NMR, Hydrogen 1 NMB and small-angle scattering (both light and neutron).
Document Details
- Document Type
- Technical Report
- Publication Date
- May 13, 1986
- Accession Number
- ADA169100
Entities
People
- Linda J. Magid
Organizations
- University of Tennessee system