Dye-containing S*cside-on/end-on copolymers
作者:
M. Dumon,
R. Zentel,
C. Kulinna,
H.W. Siesler,
期刊:
Liquid Crystals
(Taylor Available online 1995)
卷期:
Volume 18,
issue 6
页码: 903-910
ISSN:0267-8292
年代: 1995
DOI:10.1080/02678299508036708
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Mesomorphic copolysiloxanes, which combine ‘normal’ end-on linked chiral mesogenic units inducing S*cphases and side-on fixed chromophores were prepared. The interplay of the different orientational tendencies of these moieties, which are perpendicular (end-on linked mesogenic groups) or parallel (side-on fixed chromophores) to the polymer chain, lead to a strong destabilization of the S*cphase. However, copolymers with up to about 10 mol % of chromophores still show a smectic C* phase. FTIR measurements show that both moieties orient parallel to each other and perpendicular to the polymer chains. These copolymers are interesting to consider as coloured guest-host S*cmaterials for coloured displays or as pyro-electric detectors.
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