| Attributs | Valeurs |
|---|
| type
| |
| Is Part Of
| |
| Subject
| |
| Title
| - Study of the Complexation of Sodium Dodecyl Sulfate withCationically Charged Acrylamide andN-Isopropylacrylamide Based Copolymers: the Role of thePolymer Chain Hydrophobicity and of Its Charge Density
|
| has manifestation of work
| |
| related by
| |
| Author
| |
| Abstract
| - The complexation of sodium dodecyl sulfate with statistical copolymers of the cationically charged (3-(methacryloylamino)propyl)trimethylammonium chloride with acrylamide and N-isopropylacrylamide hasbeen studied. Conformational changes of the macromolecular coil in the aqueous surfactant solutions weremonitored through the measurement of the reduced viscosity of the polymer in these solutions. The formationof polymer−surfactant hydrophobic aggregates was detected by steady-state fluorescence measurements,while their concentration was determined by time-resolved fluorescence quenching measurements. Theamount of the surfactant adsorbed onto the copolymer was obtained by equilibrium dialysis experiments.Moreover, combining the results of the two last techniques, we have estimated the aggregation numberand the microviscosity of the polymer−surfactant aggregates. The degree of binding was calculated andthe influence of the Donnan effect on the results obtained was estimated. Finally, interesting conclusionson the role of the polymer hydrophobicity and of its charge density on the formation of these polymer−surfactant complexes were extracted.
|
| article type
| |
| is part of this journal
| |
