Thermal and X-Ray Diffraction Studies of Liquid Crystals Incorporating a Perfluoroalkyl Group

被引：21

作者：

Doi, T. ^{[1
]}

Takenaka, S. ^{[1
]}

Kusabayashi, S. ^{[1
]}

Nishihata, Y. ^{[2
]}

Terauchi, H. ^{[2
]}

机构：

[1] Osaka Univ, Fac Engn, Suita, Osaka 565, Japan

[2] Kwansei Gakuin Univ, Fac Sci, Dept Phys, Nishinomiya, Hyogo 661, Japan

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 1991年 / 204卷

关键词：

smectic; x-ray studies; perfluoroalkyl group;

D O I：

10.1080/00268949108046589

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Thermal properties of some liquid crystals incorporating a perfluoroalkyl group have been examined. The perfluoroalkyl group tends to enhance the smectic properties. The layer spacing in the smectic A and C phases was examined by X-ray diffraction, showing that the ratio of the layer spacing to the calculated molecular length is dependent on the entirety of molecular structures rather than the length of the perfluoroalkyl chain, and is in the range between 1.0 and 1.4. Novel perfluoroalkyl 3- or 4-substituted benzenes exhibiting smectic A phase were also prepared.

引用

页码：9 / 14

页数：6

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