Abstract
Dielectric measurements of diblock semiluorinated n-alkanes, (F(CF2)n(CH2)H), n=10, m=6−14., were carried out in the frequency range 20Hz to 106 Hz and in the temperature range from the waxy solid to isotropic state. Dielectric loss curves were observed only in the mesophase/liquid crystal state. The activation energies for the materials of m=6−9 were smaller than those of m=11 and 12. Single relaxation process can explain the observations in liquid crystalline phase. An alternation in the total integrated intensity, δϵ′ in the vicinity of phase transition temperature was found against even/odd number of carbon in alkyl group.
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Schedule a callMore From: Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
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