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.
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页码：221 / 228
页数：8
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