PBa20 ディスコティック液晶化合物の合成とその熱的・光学的性質

概要

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Discotic liquid crystalline compounds have considerable interests in their mesomorphic properties and their unique molecular arrangements. We synthesized novel disk-shaped mesogens containing one terminal reactive function, because they can be easily introduced to the polymer backbone. It is well known that disk-shaped compounds containing electron donor units can be doped with acceptor molecules to form charge transfer (CT) complexes. Therefore, we also examined the mesomorphic properties for the mixtures of the synthesized disk-shaped mesogens with 2,4,7-trinitrofluoren-9-one (TNF). This disk-shaped compound exhibited schlieren texture, while the mixtures of the disk-shaped compound with TNF exhibited focal conic fan or broken fan textures. The charge transfer absorption band of the mixture was observed about 550nm by UV-VIS absorption spectroscopy measurements.
日本液晶学会の論文
1999-09-28