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Title: Mesomorphic properties of some alpha-methyl cinnamic acids and their esters
Authors: Sadashiva, B.K.
Issue Date: 1976
Publisher: Gordon and Breach Science Publishers.
Citation: Molecular Crystals and Liquid Crystals, 1976, Vol.35, p205-213
Abstract: Two homologous series of liquid crystalline substances have been synthesized and their mesomorphic properties studied. These are (i) trans-p-n-alkoxy-alpha-methyl cinnamic acids and (ii) trans-p-n-alkoxy-alpha-methyl-p'-cyanophenyl cinnamates. The esters are colourless and fairly low melting materials of high positive dielectric anisotropy. The effect of the alpha-methyl group on the mesomorphic thermal stability of both the homologous series is discussed and compared with other materials of similar structure. The nematic-isotropic transition temperatures in ascending series of the esters show an initial decrease and then a gradual increase, which is not a commonly observed phenomenon for homologous series of liquid crystalline substances.
Description: Restricted Access.
ISSN: 1058-725X
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Copyright: 1976 OPA (Overseas Publishers Association) N.V.
Appears in Collections:Research Papers (SCM)

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