COLUMNAR LIQUID-CRYSTALS IN OLIGOSACCHARIDE DERIVATIVES .1. DISCOTIC COLUMNAR LIQUID-CRYSTALS IN CELLOBIOSE OCTADECANOATE AND CELLOTRIOSE HENDECADECANOATE

被引：31

作者：

ITOH, T

TAKADA, A

FUKUDA, T

MIYAMOTO, T

YAKOH, Y

WATANABE, J

机构：

[1] TOKYO INST TECHNOL,DEPT POLYMER CHEM,MEGURO KU,TOKYO 152,JAPAN

[2] KYOTO UNIV,INST CHEM RES,UJI,KYOTO 611,JAPAN

来源：

LIQUID CRYSTALS | 1991年 / 9卷 / 02期

关键词：

D O I：

10.1080/02678299108035499

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Cellobiose octadecanoate and cellotriose hendecadecanoate were synthesized and their mesophase properties were studied. Both ester derivatives show enantiotropic mesophases in the temperature region below 100-degrees-C. From the observations of microscopic texture and X-ray pattern, the mesophase was found to be of the hexagonal columnar, in which the column is built up by a periodic stacking of the cellobiose or cellotriose skeleton and packed into a two-dimensional hexagonal lattice. The mesophase is thus similar to the hexagonal ordered columnar (D(ho)) phase in a class of discotics, indicating that cellobiose and cellotriose moieties can work as discotic mesogens.

引用

页码：221 / 228

页数：8