Liquid-crystalline behaviour of benzobisthiazole derivatives as a rigid rod polymer model

O.-K. Kim Materials Chemistry Branch, Code 6120, Naval Research Laboratory, Washington, D.C., 20375, U.S.A.

H. S. Lee Materials Chemistry Branch, Code 6120, Naval Research Laboratory, Washington, D.C., 20375, U.S.A.; Geo-Centers, Inc., 10904 Indian Head Highway, Fort Washington, Maryland, 20744, U.S.A.

T. H. Yoon Materials Chemistry Branch, Code 6120, Naval Research Laboratory, Washington, D.C., 20375, U.S.A.; Geo-Centers, Inc., 10904 Indian Head Highway, Fort Washington, Maryland, 20744, U.S.A.

R. Shashidhar Center for Bio/Molecular Science and Engineering, Code 6090, Naval Research Laboratory, Washington, D.C., 20375, U.S.A.; Geo-Centers, Inc., 10904 Indian Head Highway, Fort Washington, Maryland, 20744, U.S.A.

Abstract

Novel materials with a new type of rigid core, namely benzobisthiazole, have been synthesized. The exhibition of liquid-crystallinity is found to be dependent upon the linkage between the rigid core and the alkyloxy phenyl terminal moieties. An interesting feature is the occurrence of tilted smectic phases (smectic C and smectic F) even though there is no significant central dipole moment transverse to the molecule.

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Liquid-crystalline behaviour of benzobisthiazole derivatives as a rigid rod polymer model

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Liquid-crystalline behaviour of benzobisthiazole derivatives as a rigid rod polymer model

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