Fluorine-containing negative dichroic 1,4-bis(acylamino)anthraquinone dyes
作者:
M. MATSUI,
Y. SUMIYA,
K. SHIBATA,
H. MURAMATSU,
Y. ABE,
M. KANEKO,
期刊:
Liquid Crystals
(Taylor Available online 1997)
卷期:
Volume 23,
issue 6
页码: 821-832
ISSN:0267-8292
年代: 1997
DOI:10.1080/026782997207759
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Fluorine-containing negative dichroic 1,4-bis(acylamino)anthraquinone dyes have been synthesized. The solubility of the dyes based on the acyl moieties in chloroform was in the order of hexanoyl>4-butylbenzoyl>3,5,6-trichloro-octafluorohexanoyl>perfluoroalkanoyl, 4-(perfluorobutyl)benzoyl, pentafluorobenzoyl, and benzoyl. The negative dichroism of the dyes was greater as the l / d ratio increased and the theta value was closer to 90. Only some 3,5,6-trichloro-octafluorohexanoyl derivatives were sufficiently soluble. Their S values were -0.26 to -0.29 in ZLI-4792.
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