http://hdl.handle.net/20.500.12128/8215
Title: | Molecular dynamics of 4-cyano-3-fluorophenyl 4-butylbenzoate as studied by dielectric relaxation spectroscopy |
Authors: | Massalska-Arodź, M. Krawczyk, J. Juszyńska, E. Kocot, Antoni Inaba, A. |
Keywords: | szkła; przejścia w ciekłych kryształach; straty i relaks dielektryczny; dynamika molekularna |
Issue Date: | 2010 |
Citation: | Acta Physica Polonica A, Vol. 117, nr 4 (2010), s. 532-536 |
Abstract: | Dielectric ®-relaxation connected with reorientations of the 4-cyano-3-fluorophenyl-4-butylbenzoate molecules around short axes in the isotropic and nematic phases is presented. In the nematic phase the super-Arrhenius temperature dependence of the relaxation has been found. Vitrification of the supercooled nematic phase is shown. Below glass transition temperature the secondary ¯-relaxation has been identified and described well by the Arrhenius temperature dependence on cooling and on heating. After softening of glass to the metastable nematic phase a spontaneous crystallization occurs as for some other low-weight molecular glass formers. |
URI: | http://hdl.handle.net/20.500.12128/8215 |
ISSN: | 0587-4246 |
Appears in Collections: | Artykuły (WNŚiT) |
File | Description | Size | Format | |
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Massalska_Arodz_Molecular_dynamics_of_4_cyano.pdf | 673,55 kB | Adobe PDF | View/Open |
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