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Optical activity of a side group cholesteric liquid crystalline silicone.
Singh, Upindranath; Hunte, Carlos; Gleeson, Helen
Liquid Crystals. 2001;28:697-701.
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Abstract
The authors measured, using a phase modulation technique, the optical rotation in the isotropic and blue phases of a side group cholesteric liq. cryst. silicone polymer. For comparison, similar measurements were performed on cholesteryl nonanoate (CN) and CE6. The polymer has a selective reflection close to that of CE6 and a chiral mesogenic side group chem. similar to CN. The optical activity data for the polymer, unlike those for low mol. mass liq. crystals, does not follow a simple Landau-de Gennes temp. dependence. [on SciFinder (R)]
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