Cationic ester-containing gemini surfactants: Determination of aggregation numbers by time-resolved fluorescence quenching
Journal article, 2012

The micellar aggregation number of a series of ester-containing gemini surfactants has been determined with steady state and with time-resolved fluorescence quenching. The latter method gave values of aggregation number about twice those obtained with the former method. It was found that the length of the spacer was the most important factor affecting the aggregation number. The length and the nature of the surfactant alkyl chains were of less importance in spite of the fact that the length of the alkyl chains strongly affects the solution properties of the unimers. © 2012 Elsevier Inc.

Author

Ali Tehrani

Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry

Joakim Kärnbratt

Chalmers, Chemical and Biological Engineering, Physical Chemistry

Jan-Erik Löfroth

Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry

Krister Holmberg

Chalmers, Chemical and Biological Engineering, Applied Surface Chemistry

Journal of Colloid and Interface Science

0021-9797 (ISSN)

Vol. 376 1 126-132

Subject Categories

Chemical Engineering

Chemical Sciences

Areas of Advance

Materials Science

DOI

10.1016/j.jcis.2012.02.053

More information

Created

10/6/2017