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Light scattering by solutions of tetradecyltrimethylammonium salts

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Summary

The micelle aggregation numbers of micelles formed from tetradecyltrimethylammonium bromide and sulphate in water and dilute salt solutions have been measured by light scattering. A comparison is made between several different methods of calculating the results.

Aggregation numbers of micelles formed when sodium sulphate is added to tetradecyltrimethylammonium bromide indicate that the micelles are the same size as those formed when only sulphate gegenions are present in solution even at a sulphate ion concentration of less than half the bromide ion concentration.

Zusammenfassung

Die Aggregationszahlen für Mizellen von Tetradecyltrimethylammoniumbromid und Tetradecyltrimethylammoniumsulfat in Wasser und verdünnten Salzlösungen wurden durch Lichtstreuungsmessungen ermittelt. Verschiedene Berechnungsmethoden wurden miteinander verglichen.

Die Aggregationszahlen im System Tetradecyl-trimethylammoniumbromid/Natriumsulfat deuten darauf hin, daß die Mizellen von der gleichen Größe sind wie die, wenn nur Sulfatgegenionen in der Lösung vorhanden sind, selbst wenn die Sulfationenkonzentration nur die Hälfte der Bromidionenkonzentration beträgt.

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Author notes

  1. M. N. Jones & D. A. Reed

    Present address: Department of Chemistry, University of Manchester, England

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    1. M. N. Jones
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    2. D. A. Reed
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    Jones, M.N., Reed, D.A. Light scattering by solutions of tetradecyltrimethylammonium salts. Kolloid-Z.u.Z.Polymere 235, 1196–1200 (1969). https://doi.org/10.1007/BF01542528

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    • DOI: https://doi.org/10.1007/BF01542528

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