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Proceedings Paper

Induced cholesteric systems based on some cyano derivatives as host phases
Author(s): Natalya I. Shkolnikova; Lidiya A. Kutulya; V. V. Vashchenko; A. P. Fedoryako; V. I. Lapanik; N. R. Posledovich
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Paper Abstract

Macroscopical properties of some induced cholesteric compositions based on 4-pentyl-4'-cyano derivatives of biphenyl and phenylcyclohexane as host phases have been investigated. The series of N-arylidene derivatives of (S)-1-phenylethylamine with varied both rigid moiety of the N-arylidene fragment and terminal substituent was used as chiral dopants. The influence of the chiral dopant molecular structure as well as of physical properties of the host phases used on the helical twisting power, the temperature dependence of the induced helical pitch and the N* mesophase thermal stability has been characterized. It has been concluded that the distinctions in properties of the LC systems containing the OCH2 and COO linking groups are caused by their different conformational states.

Paper Details

Date Published: 11 December 2002
PDF: 9 pages
Proc. SPIE 4938, Selected Papers from the International Conference on Spectroscopy of Molecules and Crystals, (11 December 2002); doi: 10.1117/12.486654
Show Author Affiliations
Natalya I. Shkolnikova, Institute for Single Crystals (Ukraine)
Lidiya A. Kutulya, Institute for Single Crystals (Ukraine)
V. V. Vashchenko, Institute for Single Crystals (Ukraine)
A. P. Fedoryako, Institute for Single Crystals (Ukraine)
V. I. Lapanik, Institute of Applied Physical Problems (Belarus)
N. R. Posledovich, Institute of Applied Physical Problems (Belarus)


Published in SPIE Proceedings Vol. 4938:
Selected Papers from the International Conference on Spectroscopy of Molecules and Crystals
Galina A. Puchkovska; Sergey A. Kostyukevych, Editor(s)

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