Solubilization of Cationic Hemicyanine Dyesin Anionic Surfactant Micelles: A Partitioning Study View Full Text


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Article Info

DATE

2000-07

AUTHORS

Kashif Naeem, Syed S. Shah, Syed W. H. Shah, Gul M. Laghari

ABSTRACT

Cationic hemicyanine dyes of the 1-methyl-4-(4-(di-n-alkylamino)-styryl) pyridinium betain type (alkyl group=methyl to butyl) have been investigated by differential spectroscopy in order to ascertain their solubilization in aqueous micellar solution of sodium dodecylbenzene sulfonate (SDBS). The differential absorption spectra were recorded as a function of surfactant concentration at 25.0°C. Thermodynamic parameters were calculated from partition coefficient data. The results show that cationic hemicyanine dyes are solubilized at the micellar surface, indicating an electrostatic interaction between dyes and surfactant micelles. More... »

PAGES

761-767

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s007060050023

DOI

http://dx.doi.org/10.1007/s007060050023

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1016872187


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