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Lyotropic Liquid‐Crystalline Behavior in Disc‐Shaped Compounds Incorporating the 3,3′‐Di(acylamino)‐2,2′‐bipyridine Unit
Author(s) -
Palmans Anja R. A.,
Vekemans Jozef A. J. M.,
Hikmet Rifat A.,
Fischer Hartmut,
Meijer E. W.
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(199808)10:11<873::aid-adma873>3.0.co;2-h
Subject(s) - materials science , lyotropic , liquid crystalline , bipyridine , chemical engineering , crystallography , composite material , polymer , crystal structure , chemistry , engineering
An extended‐core liquid crystal (LC) based on the 3,3′‐di(acylamino)‐2,2′‐bipyridine unit is investigated with respect to its behavior in alkane solvents. It is demonstrated that the lyotropic mesomorphism observed in dodecane can be tuned by varying the concentration of the sample, and the columns can be switched in an electric field. The Figure shows the structure of the columnar nematic phase present in dodecane containing 15.7 wt.‐% LC.