Photo-Instability in a Binary Mixture of Banana-Shaped and Rod-Shaped Liquid Crystals

Abstract:

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By triangular wave method, we studied the effects of ultraviolet irradiation on the polarization of a binary liquid crystal mixture. The mixture was comprised of 94 wt% of banana-shaped liquid crystal 4-chloro-1,3-phenylene bis [4-(4-n-tetradecyl) phenylimino methyl] benzoate and 6 wt% of an azo-containing rod-shaped liquid crystal hexanoic acid 4-(4-ethoxy-phenylazo)-phenyl ester. Under the 365 nm irradiation for 40 minutes, the polarization of the mixture was observed to decrease 10% although the component of the banana-shaped liquid crystal was photostable. Our results demonstrated that photolysis took place in the component of azo-containing rod-shaped liquid crystal.

Info:

Periodical:

Key Engineering Materials (Volumes 428-429)

Edited by:

Yuan Ming Huang

Pages:

305-308

DOI:

10.4028/www.scientific.net/KEM.428-429.305

Citation:

L. L. Chen et al., "Photo-Instability in a Binary Mixture of Banana-Shaped and Rod-Shaped Liquid Crystals", Key Engineering Materials, Vols. 428-429, pp. 305-308, 2010

Online since:

January 2010

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Price:

$35.00

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