Highly fluorinated thermotropic liquid crystals: an update

被引:169
作者
Guittard, F [1 ]
de Givenchy, ET [1 ]
Geribaldi, S [1 ]
Cambon, A [1 ]
机构
[1] Univ Nice, GRECFO Chim Organ Fluor, F-06108 Nice 2, France
关键词
liquid crystal materials; perfluorinated; smectic; ferroelectric;
D O I
10.1016/S0022-1139(99)00205-5
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Fluorine is used in liquid crystal materials in order to give them particular properties as compared to their hydrocarbon homologues. This leads to use of the new compounds as materials mainly in display devices such as Twisted Nematic Liquid Crystals Display (TNLCD) or for the development of Surface Stabilized Ferroelectric smectic C* display (SSFLCDs). In this paper, we describe recent studies and research effort concerning the liquid crystalline behavior of compounds incorporating a highly fluorinated part with more than one fluoromethylene units. We examine some of their mesophase properties and the impact of molecular shape on the resulting liquid crystal behavior. (C) 1999 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:85 / 96
页数:12
相关论文
共 120 条
[1]   DIELECTRIC RELAXATIONS IN BILAYER STRUCTURES OF COMB-LIKE COPOLYMERS - PERFLUORALKYL AND LIQUID-CRYSTALLINE SIDE-CHAINS [J].
ALIG, I ;
BRAUN, D ;
JAREK, M ;
HELLMANN, GP .
MACROMOLECULAR SYMPOSIA, 1995, 90 :173-194
[2]  
[Anonymous], HDB LIQUID CRYSTALS
[3]   A novel liquid crystal showing antiferroelectric smectic C* and twist grain boundary phases [J].
Aoki, Y ;
Nohira, H .
LIQUID CRYSTALS, 1999, 26 (01) :97-100
[4]   Novel liquid crystal mixtures for a surface-stabilized ferroelectric LCD [J].
Arakawa, S ;
Matsui, E ;
Nito, KI ;
Yasuda, A .
LIQUID CRYSTALS, 1997, 23 (05) :659-666
[5]   SYNTHESIS OF ISOCYANO AND (HALOALKYNYL) BIPHENYLS - NEW THERMOTROPIC LIQUID-CRYSTALS [J].
BAILEY, AL ;
BATES, GS .
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1991, 198 :417-428
[6]   Liquid Crystals with Polar Substituents Containing Fluorine: Synthesis and Physical Properties [J].
Bartmann, E. ;
Dorsch, D. ;
Finkenzeller, U. .
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1991, 204 :77-89
[7]   LIQUID-CRYSTALS WITH FLUORINE-CONTAINING ALKYL-GROUPS [J].
BARTMANN, E .
BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1993, 97 (10) :1349-1355
[8]   Ferroelectric liquid crystals: development of materials and fast electrooptical elements for non-display applications [J].
Beresnev, L ;
Haase, W .
OPTICAL MATERIALS, 1998, 9 (1-4) :201-211
[9]   The influence of fluorinated alkyl chains on the stabilization of hydrogen bonded liquid crystals [J].
Bernhardt, H ;
Weissflog, W ;
Kresse, H .
CHEMISTRY LETTERS, 1997, (02) :151-152
[10]   Liquid crystalline 1,4-disubstituted cyclohexenylene derivatives [J].
Bezborodov, VS ;
Petrov, VF .
LIQUID CRYSTALS, 1999, 26 (02) :271-280