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Novel Polar Liquid Crystals with Very Low Birefringence Based on trans ‐1,3‐Dioxane Building Blocks
Author(s) -
Kirsch Peer,
Poetsch Eike
Publication year - 1998
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/(sici)1521-4095(199805)10:8<602::aid-adma602>3.0.co;2-8
Subject(s) - birefringence , materials science , mesogen , polar , liquid crystal , alkyl , dielectric , anisotropy , side chain , block (permutation group theory) , group (periodic table) , viscoelasticity , crystallography , organic chemistry , optics , composite material , optoelectronics , polymer , liquid crystalline , geometry , chemistry , physics , mathematics , astronomy
Liquid crystals with one or more trans ‐1,3‐dioxane building blocks (see Figure) combine high dielectric anisotropy with low birefringence and favorable mesogenic and viscoelastic properties. A new, building‐block‐oriented synthetic strategy is described that offers convenient access to trans ‐1,3‐dioxane–based core structures with various alkyl or alkenyl side chains or with a difluorovinyloxy(methyl) group as a polar end group.