This article is cited in 4 papers

Polymers

Dielectric properties of liquid-crystal azomethine polymer with alkyl-substituted side chain

D. S. Kovalev^a, S. V. Kostromin^a, V. Musteaţa^b, V. Cozan^b, S. V. Bronnikov<sup>a

a</sup> Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg
^b "Petru Poni" Institute of Macromolecular Chemistry, Romania

Abstract: Relaxation processes in side-chain liquid-crystal azomethine polymer have been studied using dielectric spectroscopy in wide ranges of temperatures and frequencies. Two low-temperature relaxation processes ($\beta_1$ and $\beta_2$) caused by low-amplitude noncooperative motion of kinetic units in side groups and a high-temperature $\alpha$-process caused by the large-scale cooperative motion of kinetic units in the main polymer chain have been revealed.

Received: 12.02.2015

 English version: Physics of the Solid State, 2015, 57:8, 1673–1677

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