Guest effect on nematic-isotropic phase transition temperature of liquid crystal 6CHBT

被引：10
作者：
Bauman, D [1 ]
Solczynski, J [1 ]
Chrzumnicka, E [1 ]
机构：
[1] Poznan Tech Univ, Inst Phys, PL-60965 Poznan, Poland
来源：
ACTA PHYSICA POLONICA A | 1997年 / 92卷 / 06期
关键词：
D O I：
10.12693/APhysPolA.92.1151
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The polarized absorption spectra of seven dichroic azo dyes dissolved in the nematogenic liquid crystal host 6CHBT have been recorded as a function of temperature. On the basis of these spectra, the guest order parameter has been determined. Moreover, the influence of the dye addition on the behaviour of the guest-host mixture in the vicinity of the nematic-isotropic phase transition has been examined. The experimental results have been compared in some details with the calculations done on the basis of the mean field theory for binary mixtures.
引用
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页码：1151 / 1161
页数：11
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