Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10377800 | Journal of Colloid and Interface Science | 2005 | 5 Pages |
Abstract
A proton NMR titration study is presented where in small increments quantities of water were added to “dry” CmEn nonionic surfactant. For a particular range of compositions, two resonances for the water/hydroxyl protons were observed that display large chemical shift increases as water content is increased indicating that water must partition between two chemical environments with a surprisingly slow chemical exchange rate. A detailed mechanism of how the increasing amounts of water are incorporated into the surfactant medium is presented accounting for all observed spectral changes.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Markus M. Hoffmann, Megan E. Bennett, Jack D. Fox, Donald P. Wyman,