Abstract
The properties of didodecyldiphenylether disulfonate gemini-type surfactants have been studied and compared to mono-alkylated and monosulfonated analogous surfactants. Dynamic and equilibrium surface tension measurements indicate that the gemini surfactants have a higher surface activity compared to that of the monoalkyl analogues. The gemini-type surfactants have much larger surface area per molecule, opposite effect of carbon number on CMC and considerable swelling of the micelles upon increasing surfactant concentration. Determination of aggregation numbers by fluorescence measurements reveals that the longer chain gemini surfactants form micelles having less than 10 molecules per micelle.
| Original language | English |
|---|---|
| Pages (from-to) | 403-408 |
| Number of pages | 6 |
| Journal | Colloids and Surfaces A: Physicochemical and Engineering Aspects |
| Volume | 250 |
| Issue number | 1-3 SPEC. ISS. |
| DOIs | |
| State | Published - 10 Dec 2004 |
Keywords
- Gemini-type
- Micelles
- Surfactants