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Original Articles

First order transitions to a lyotropic biaxial nematic

Pages 623-629 | Received 26 Aug 1994, Accepted 27 Sep 1994, Published online: 24 Sep 2006
 

Abstract

The phase diagram of the sodium dodecylsulphate/decanol/water system is studied by2H NMR spectroscopy in the range between the calamitic nematic (N+ C) and discotic nematic (N D) phases. In this narrow range a nematic biaxial phase (NBX) is observed. The phase transitions between the nematic phases are all of first order. The shape of the surfactant aggregates in the nematic phases varies with composition and temperature.

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