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The first liquid crystalline diol compound which exhibits nematic,smecticA +, and smecticC + mesophases in the presence of water |
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| Authors: | N. Pietschmann A. Lunow G. Brezesinski C. Tschierske F. Kuschel H. Zaschke |
| Affiliation: | 1. Institut für Physikalische Chemie, Martin-Luther-Universit?t Halle-Wittenberg, Mühlpforte 1, O-4010, Malle/S, FRG 2. Institut für Organische Chemie, Martin-Luther-Universit?t Halle-Wittenberg, Malle/S, FRG |
| Abstract: | A new amphiphilic ethane-1,2-diol derivative with a rodlike 2-phenylpyrimidine rigid core has been synthesized. From the combined results of differential scanning calorimetry and optical polarization microscopy a phase diagram amphiphile/water was constructed. The system exhibits a nematic phase at a very low water content, a smecticA + and a smecticC + phase at higher water concentrations. Such a phase sequence has been found for a lyotrophic system for the first time. |
| Keywords: | Amphiphilicdiol phenylpyrimidinederivative nonionicsurfactant phasediagram nematicphase smecticphase |
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