Cationic ester-containing gemini surfactants: Determination of aggregation numbers by time-resolved fluorescence quenching
Artikel i vetenskaplig tidskrift, 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.

Författare

Ali Tehrani

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

Joakim Kärnbratt

Chalmers, Kemi- och bioteknik, Fysikalisk kemi

Jan-Erik Löfroth

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

Krister Holmberg

Chalmers, Kemi- och bioteknik, Teknisk ytkemi

Journal of Colloid and Interface Science

0021-9797 (ISSN)

Vol. 376 126-132

Ämneskategorier

Kemiteknik

Kemi

Styrkeområden

Materialvetenskap

DOI

10.1016/j.jcis.2012.02.053