VISUALIZATION OF THE CHOLESTERIC TEXTURE NEAR A GRANDJEAN LINE

被引：7

作者：

HEYNDERICKX, I

BROER, DJ

TERVOORTENGELEN, Y

机构：

[1] PHILIPS RES LABS,POB 80000,5600 JA EINDHOVEN,NETHERLANDS

[2] EINDHOVEN UNIV TECHNOL,5600 MB EINDHOVEN,NETHERLANDS

来源：

LIQUID CRYSTALS | 1993年 / 15卷 / 05期

关键词：

D O I：

10.1080/02678299308036494

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The twisted structure near a Grandjean line in a cholesterically ordered liquid crystalline network is visualized by scanning electron microscopy. It is shown that the formation of an extra pi-rotation in the molecular helix at a Grandjean line occurs at a localized depth in the sample and gives rise to an edge dislocation of strength 1/2, dissociated into a pair of two simple line dislocations.

引用

页码：745 / 748

页数：4

共 12 条

[1]

BROER DJ, 1989, MAKROMOL CHEM, V190, P3201

[2]

BROER DJ, 1991, MAKROMOL CHEM, V192, P59

[3]

BROER DJ, 1989, MAKROMOL CHEM, V190, P2255

[4]

BROER DJ, 1990, MACROMOLECULES, V23, P2374