Mesomorphic properties of some alpha-methyl cinnamic acids and their esters

dc.contributor.author	Sadashiva, B K
dc.date.accessioned	2007-06-06T10:02:15Z
dc.date.available	2007-06-06T10:02:15Z
dc.date.issued	1976
dc.description	Restricted Access.	en
dc.description.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.	en
dc.format.extent	325689 bytes
dc.format.mimetype	application/pdf
dc.identifier.citation	Molecular Crystals and Liquid Crystals, 1976, Vol.35, p205-213	en
dc.identifier.issn	1058-725X
dc.identifier.uri	http://hdl.handle.net/2289/2624
dc.language.iso	en	en
dc.publisher	Gordon and Breach Science Publishers.	en
dc.relation.uri	http://dx.doi.org/10.1080/15421407608083670	en
dc.rights	1976 OPA (Overseas Publishers Association) N.V.	en
dc.title	Mesomorphic properties of some alpha-methyl cinnamic acids and their esters	en
dc.type	Article	en

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