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Liquid Crystals and their Application
Russian Journal Zhidkie kristally i ikh prakticheskoe ispol'zovanie Жидкие кристаллы и их практическое использование |
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Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2010, 1, 94—100. |
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Influence of Non-Mesomorphic Additives on the Properties of Liquid Crystalline Materials. III. Mixtures of Cyanosubstituted LC with Hydroxyl Derivatives of Benzonitrile
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E. V. Bobrickaya1, V. V. Alexandriyskiy1,2,
I. V. Novikov1, S. A. Kuvshinova1, V. A. Burmistrov1,2
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Author affiliations
1Ivanovo State University of Chemistry and Technology,
153460 Ivanovo, Av. F. Engel’s, 7.
E-mail: NMR@isuct.ru
2Institute of Solution Chemistry, Russian Academy of Sciences
153045 Ivanovo, Akademicheskaya Str., 1.
E-mail: burmistrov@isuct.ru
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Abstract
The influence of polar aromatic non-mesogenic addidives 4-hydroxy-4'-cyano-biphenile, 4-(6- hydroxyhexyloxy)benzonitrile on the mesomorphic, dielectric and orientational properties of 4-(trans-4'-pentylcyclohexyl)benzonitrile(5PCH) and 4-pentyloxy-4'-cyanobiphenyl (5OCB) was studied. It was shown that addition of polar non-mesomorphic compounds results in dielectric anizotropy rise. More effective arrangement of 4-hydroxy-4'-cyanobiphenile connected with H-complex formation was established.
Keywords: iquid crystals, mixtures, non-mesomorphic additives, dielectric and orientational properties, anisotropy, association, H-bond
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