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This article is cited in 5 scientific papers (total in 5 papers)
Optical properties
Fourier transform infrared spectroscopic study of the kinetics of a first-order phase transition in tridecanoic acid ÑH$_{3}$(CH$_{2}$)$_{11}$ÑÎÎH
V. A. Marikhina, L. P. Myasnikovaa, E. I. Radovanovaa, B. Z. Volchekb, D. A. Medvedevab a Ioffe Institute, St. Petersburg
b Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg
Abstract:
The structural changes in crystalline lamella cores of tridecanoic acid ÑH$_{3}$(CH$_{2}$)$_{11}$ÑÎÎH during heating in the range from the temperature $T_{1}$ = 13.5$^\circ$C to $T_{2}>T_{m}$ = 41.6$^\circ$C have been investigated using Fourier transform infrared spectroscopy. The behavior of the bands of rocking (in the region of 720 cm$^{-1}$) and bending (in the region of 1470 cm$^{-1}$) vibrations of ÑÍ$_{2}$ groups in tridecanoic acid methylene segments has been analyzed. It has been shown that, in the first-order phase transition region ($T_{s-s}\sim$ 36$^\circ$C) within a narrow temperature range ($\Delta T_{1}\le$ 1 K), there is a gradual transformation of the initial triclinic subcell into the hexagonal subcell. The mechanism of this transition has been considered in terms of the theory of diffuse first-order phase transitions.
Received: 07.07.2016
Citation:
V. A. Marikhin, L. P. Myasnikova, E. I. Radovanova, B. Z. Volchek, D. A. Medvedeva, “Fourier transform infrared spectroscopic study of the kinetics of a first-order phase transition in tridecanoic acid ÑH$_{3}$(CH$_{2}$)$_{11}$ÑÎÎH”, Fizika Tverdogo Tela, 59:2 (2017), 322–327; Phys. Solid State, 59:2 (2017), 331–337
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https://www.mathnet.ru/eng/ftt9681 https://www.mathnet.ru/eng/ftt/v59/i2/p322
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