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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., 2011, 3, 54—61. |
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Binary Liquid Crystalline Systems Composed of Poly(Propylene Imine) Dendrimer and p-n-Pentyloxy-p'-Cyanobiphenyl I. Phase Equilibria and Sorption Properties
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S. V. Blokhina1, M. V.Ol'khovich1, A. V. Sharapova1, N. V. Usoltseva2
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Author affiliations
1Institute of Solution Chemistry, Russian Academy of Sciences
153045 Ivanovo, Akademicheskaya Str., 1.
E-mail: svb@isc-ras.ru
2Ivanovo State University, Nanomaterials Research Institute
153025 Ivanovo, Ermak Str., 39.
E-mail: nv_usoltseva@mail.ru
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Abstract
A binary system composed of the liquid crystalline poly(propylene imine) dendrimer and nematic p-n-pentyloxy-p'-cyanobiphenyl has been studied by thermomicroscopy, differen-tial scanning calorimetry and inverse gas chromatography. In this system, there is the colum-nar phase being stable within broad ranges of temperature and component ratio. Depend-ences of the retention volumes of the solutes on composition of the sorbents are found to exhibit the maximum at 10 mas. % p-n-pentyloxy-p'-cyanobiphenyl.
Keywords: liquid crystals, dendrimer, p-n-pentyloxy-p'-cyanobiphenyl, phase diagram, differential scanning calorimetry, retention diagram
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