Orientational Ordering of Dyes in the Glassy State of Liquid-Crystalline Side Group Polymers
作者:
H. Ringsdorf,
H.W. Schmidt,
G. Baur,
R. Kiefer,
F. Windscheid,
期刊:
Liquid Crystals
(Taylor Available online 1986)
卷期:
Volume 1,
issue 4
页码: 319-325
ISSN:0267-8292
年代: 1986
DOI:10.1080/02678298608086665
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Liquid-crystalline side group copolymers containing dyes can be macroscopic-ally oriented and the orientation can be locked-in below the glass transition temperature. The order parameters of anthraquinone dyes and a trisazo dye in nematic and smectic glasses were determined by optical absorption measurements. The dyes have higher degrees of order in the smectic glass than in the nematic glass. A comparison of order parameters of covalently bonded dyes with order parameters of monomeric dyes dissolved in the corresponding homopolymers demonstrates the influence of covalently anchoring the dye to the polymer.
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