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Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2012, 4, 81—85.
Structural Transition in Isotropic Phase of Smectic Polyacrylate
S. G. Polushin1, V. B. Rogozhin1, A. V. Zakhryapa1, E. I. Rjumtsev1, N. I. Boiko2
Author affiliations 1Saint Petersburg State University, Physical Faculty
198504 St. Petersburg, Petrodvorets, Ul’yanovskaya str., 1. E-mail: firstname.lastname@example.org 2Lomonosov Moscow State University, Chemical Faculty
119991 Moscow, Leninskie Gory, 1
Abstract The electric birefringence (Kerr effect) in the melt of a comb-like polymer with acrylate main chain and mesogenic cyanobiphenyl side groups was investigated above smectic – isotropic phase transition temperature. It was revealed that the Kerr constant temperature dependence changes abruptly owing to changes in short-range orientation order at isotropic – isotropic phase transitions.