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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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Rus Eng


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Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2016, 16 (2), 38—45.
DOI: 10.18083/LCAppl.2016.2.38

Conditions of the Hydrolytic Condensation Reaction of Dialkyldichlorosilanes and Separation of Dialkyl Hydrolysates in the Preparation of Organosilicone Orientants for Liquid Crystals

V. G. Mazaeva, L. B. Skvortsova, S. N. Natsyuk, T. I. Shulyat'eva,
M. B. Lotarev

Author affiliations
State Research Institute of Chemistry and Technology of Organoelement Compounds,
38 Highway Enthusiasts, Moscow, 105118, Russia. 

Composition of hydrolytic condensation products of dialkylchlorosilanes (methylethyldihlorosilane and diethyldichlorosilane) obtained in various reaction media was investigated by the method of gas liquid chromatography. The optimal conditions for the preparation of cyclic and linear oligomers with terminal hydroxy groups of the given chain length were found. The isolated organosilicon compounds were tested as orientant for liquid crystals.

Keywords: hydrolytic condensation, dialkyldihlorsilanes, composition of hydrolysates, dialkylcyclosiloxanes, linear oligomers with terminal hydroxy groups, orientants for liquid crystals

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