Calorimetric and dielectric investigations of smectic liquid crystals with aerosil

被引:47
作者
Abd-El-Messieh, SL [1 ]
Werner, J [1 ]
Schmalfuss, H [1 ]
Weissflog, W [1 ]
Kresse, H [1 ]
机构
[1] Univ Halle Wittenberg, Inst Chem Phys, D-06108 Halle, Germany
关键词
D O I
10.1080/026782999204976
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Two strongly polar 4-(4-cyanobenzyloxy) benzylidene 4-n-alkylanilines were synthesized for the first time and mixed with the hydrophilic aerosil A 300. The compounds, showing a rich polymorphism, and the mixtures were investigated by calorimetric and dielectric methods. Phase transitions of first and second order were detected. Neither the phase transition temperatures nor dielectric relaxation times are strongly influenced by addition of aerosil up to 20%.
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收藏
页码:535 / 539
页数:5
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