Binding of Photosurfactant (4-butyl-azobenzene-4′-oxyethyltrimethylammonium bromide) to Polyelectrolyte

The binding of a photosurfactant, 4-butyl-azobenzene-4′-oxyethyltrimethyl ammonium bromide (BZTABr), to a linear polymer, sodium poly(2-acrylamide-2-methylpropane sulfonate) (PAMPS), has been studied by using a surfactant selective electrode. The photosurfactant undergoes atrans–cistransition on UV/...

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Bibliographic Details
Published in:Journal of colloid and interface science 1999-05, Vol.213 (2), p.412-416
Main Authors: Liu, Jun, Kobayashi, Kohsaku, Yang, Ling, Takisawa, Noboru, Shirahama, Keishiro
Format: Article
Language:English
Subjects:
binding isotherm
Chemistry
cooperative binding
Exact sciences and technology
General and physical chemistry
ideal mixing
photosurfactant
Surface physical chemistry
Surface-active agents: properties
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Summary:The binding of a photosurfactant, 4-butyl-azobenzene-4′-oxyethyltrimethyl ammonium bromide (BZTABr), to a linear polymer, sodium poly(2-acrylamide-2-methylpropane sulfonate) (PAMPS), has been studied by using a surfactant selective electrode. The photosurfactant undergoes atrans–cistransition on UV/vis irradiation. The binding behavior changes by varying the composition of thetransandcisforms in the solution. The ideal mixing–ideal cooperative binding model we had proposed previously for the binding of binary surfactants was applied to successfully predict the binding isotherms and the critical aggregation concentrations of the present systems. The binding of atrans–cismixture of BZTABr to a polymer is analogous to the ideal mixed micelle formation. A sort of synergetic effect was found in the binding process.
ISSN:0021-9797
1095-7103
DOI:10.1006/jcis.1999.6156