ISSN:
0021-8995
Schlagwort(e):
Chemistry
;
Polymer and Materials Science
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
,
Maschinenbau
,
Physik
Notizen:
The adsorption of sodium dodecyl sulfate on polystyrene-styrene interfaces has been studied. Polystyrene interfaces of 20 and 60% were considered. Initial surfactant concentrations used in the study were 0.0004, 0.0008, and 0.004 mole/l. Two temperature levels, 25 and 75°C., were studied. Results showed no effect of initial surfactant concentration for a 20% interface at 25°C. However, the data for the 60% interface at 25°C. showed an effect of initial surfactant concentration. The apparent anomaly in the results regarding effect of initial surfactant concentration was explained in terms of the behavior of polystyrene-styrene as a mixed absorbent and the work of Harkins and co-workers, which showed that surfactant adsorption was a function of initial surfactant concentration over certain concentration ranges. Rate of surfactant adsorption appeared to be a function of surfactant adsorption raised to a power. The order of the adsorption appeared to be first-order for the 20% interface and second-order for the 60% interface.
Zusätzliches Material:
3 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/app.1966.070100706
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