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A statistical theory of liquid crystalline mixtures. Components of different size

โœ Scribed by R.L. Humphries; G.R. Luckhurst


Book ID
103010059
Publisher
Elsevier Science
Year
1973
Tongue
English
Weight
315 KB
Volume
23
Category
Article
ISSN
0009-2614

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โœฆ Synopsis


The Humphries-James-Luckhurst theory of liquid crystalline mixtures is extended to include different sized components.

The theory is able to predict the concentration dependence of the nematic-isotropic transition temperature for the binary mixture of 4,4'dimethoxyazoxybenzene and 4,4'di-rr-hexylosyazoxybenzene in complete accord with experiment.


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The helical twisting power p-t of binary cholestcric mixtures has been measured as a function of mole fraction x. Whenever the molecular structure of the components is different the function p -I(X) deviates considerably from Linearity. In scme cases unexpected heliwl inversions had been obscrvcd. T