Relaxational properties of the supercooled phase of right-handed (s) 4-(2-methylbutyl)-4'-cyanobiphenyl(#CB15)

Maria Massalska-Arodz; Ian Karl Smith; Graham Williams; George Anthony Aldridge; Roman S. Dabrowski

doi:10.1117/12.299981

1 February 1998 Relaxational properties of the supercooled phase of right-handed (s) 4-(2-methylbutyl)-4'-cyanobiphenyl(CB15)

Maria Massalska-Arodz, Ian Karl Smith, Graham Williams, George Anthony Aldridge, Roman S. Dabrowski

Author Affiliations +

Proceedings Volume 3318, Liquid Crystals: Physics, Technology, and Applications; (1998) https://doi.org/10.1117/12.299981
Event: Liquid Crystals, 1997, Zakopane, Poland

Abstract

Complex dielectric permittivity measurements performed for right handed (s) 4-(2-methylbutyl)-4'-cyanobiphenyl (CB15) in frequencies from 0.1Hz till 100kHz are presented. The phase sequence observed on cooling differs form that observed on heating: on cooling only an isotropic liquid and a glassy phase have been observed while on heating the glass transforms to a viscous liquid that crystallizes around 245K. On further heating the crystal melts to form the isotropic liquid at about 280 K. Temperature dependence of relaxation time is found to be of the Vogel-Fulcher-Tamman type.

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Maria Massalska-Arodz, Ian Karl Smith, Graham Williams, George Anthony Aldridge, and Roman S. Dabrowski "Relaxational properties of the supercooled phase of right-handed (s) 4-(2-methylbutyl)-4'-cyanobiphenyl(CB15)", Proc. SPIE 3318, Liquid Crystals: Physics, Technology, and Applications, (1 February 1998); https://doi.org/10.1117/12.299981

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