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http://hdl.handle.net/2289/2624
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. |
URI: | http://hdl.handle.net/2289/2624 |
ISSN: | 1058-725X |
Alternative Location: | http://dx.doi.org/10.1080/15421407608083670 |
Copyright: | 1976 OPA (Overseas Publishers Association) N.V. |
Appears in Collections: | Research Papers (SCM) |
Files in This Item:
File | Description | Size | Format | |
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1976 MCLC V35 p205.pdf Restricted Access | Restricted Access | 318.06 kB | Adobe PDF | View/Open Request a copy |
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