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New induced cholesteric micellar liquid crystals. Characterization and pitch determination

Neue induzierte cholesterische micellare Flüssigkristalle. Charakterisierung und Ganghöhenbestimmung

  • Anorganische Und Physikalische Chemie
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Summary

New induced cholesteric micellar liquid crystals have been prepared based on potassium laurate and sodium decyl sulfate. The chiral molecule D-glucose was used as dopant. The inverse pitch length is found to be proportional to the added guest. The twist induced by the dopant strongly depends on the nature of the detergent, the principal component of the mesophases. The mesophases are characterized on the basis of the microscopic textures. Deuterium NMR spectra in D2O shows positive diamagnetic anisotropy for these cholesteric mesophases.

Zusammenfassung

Es wurden neue induzierte cholesterische micellare Flüssigkristalle basierend auf Kaliumlaurat und Natriumdecylsulfat hergestellt. Als chirales Molekül zur Ausbildung der Phasen wurde D-Glucose benutzt. Es wurde festgestellt, daß die inverse Ganghöhe proportional zur zugesetzten Gastkomponente ist. Die induzierte Schraubung hängt stark von der Natur des Detergens, der Hauptkomponente der Mesophase, ab. Die Mesophasen werden auf der Basis der mikroskopischen Textur charakterisiert. Die Deuterium-NMR-Spektren in D2O zeigen für diese cholesterischen Mesophasen eine positive diamagnetische Anisotropie.

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Huque, E.M. New induced cholesteric micellar liquid crystals. Characterization and pitch determination. Monatsh Chem 120, 393–399 (1989). https://doi.org/10.1007/BF00811551

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  • DOI: https://doi.org/10.1007/BF00811551

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