NEW INDUCTIONS OF COLUMNAR MESOPHASES IN NEMATIC DISCOTIC MULTIYNE MESOGENS

被引：16
|
作者：
PRAEFCKE, K
SINGER, D
KOHNE, B
机构：
[1] Institute of Organic Chemistry, Technische Universitat Berlin, Berlin 12
来源：
LIQUID CRYSTALS | 1993年 / 13卷 / 03期
关键词：
D O I：
10.1080/02678299308026316
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
In examples of two large naphthalene- and triphenylene-centred hexaynes exhibiting only the nematic discotic (N(D)) type of mesophase, a new kind of phase induction was observed. These disc-shaped nematogens were doped with numerous dipolar carboycyclic compounds leading to the induction of two types of columnar mesophase (i.e. D(ro) and D(ho)). The phase behaviour of these binary systems, depending on the structure of the dopant applied, was studied by polarizing microscopy.
引用
收藏
页码：445 / 454
页数：10
相关论文
共 50 条
  • [41] Discotic salicylaldimato metal complexes exhibiting columnar mesophases and their mixtures with rod-like salicylaldimato complexes
    Date, RW
    Bruce, DW
    LIQUID CRYSTALS, 2004, 31 (11) : 1435 - 1444
  • [42] Optical and structural properties of new discotic acrylates polymerized in the discotic nematic phase
    FavreNicolin, CD
    Lub, J
    vanderSluis, P
    ADVANCED MATERIALS, 1996, 8 (12) : 1005 - 1008
  • [43] Columnar mesophases and phase behaviors of novel polycatenar mesogens containing bi-1,3,4-oxadiazole
    Qu, Songnan
    Li, Min
    TETRAHEDRON, 2007, 63 (50) : 12429 - 12436
  • [44] The synthesis of triphenylene-based discotic mesogens - New and improved routes
    Boden, N.
    Borner, R. C.
    Bushby, R. J.
    Cammidge, A. N.
    Jesudason, M. V.
    LIQUID CRYSTALS, 2006, 33 (11-12) : 1443 - 1448
  • [45] A Novel Class of Amphotropic Mesogens Displaying SA-Polymorphism, Nematic and Lyotropic Columnar Phases
    Department of Organic Chemistry, Martin-Luther-University Halle, Kurt-Mothes-Str. 2, D-06120 Halle, Germany
    Mol Cryst Liq Cryst Sci Technol Sect A Mol Crys Liq Cryst, (75-82):
  • [46] A novel class of amphotropic mesogens displaying SA-polymorphism, nematic and lyotropic columnar phases
    Kölbel, M
    Tschierske, C
    MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1999, 332 : 2585 - +
  • [47] Discotic columnar mesophases derived from 'rod-like' π-conjugated anion-responsive acyclic oligopyrroles
    Maeda, Hiromitsu
    Terashima, Yoshitaka
    Haketa, Yohei
    Asano, Atsushi
    Honsho, Yoshihito
    Seki, Shu
    Shimizu, Masahiro
    Mukai, Hidetomo
    Ohta, Kazuchika
    CHEMICAL COMMUNICATIONS, 2010, 46 (25) : 4559 - 4561
  • [48] Crystal structures of 2,3,6,7,10,11-oxytriphenylenes. Implications for columnar discotic mesophases
    Andresen, TL
    Krebs, FC
    Thorup, N
    Bechgaard, K
    CHEMISTRY OF MATERIALS, 2000, 12 (08) : 2428 - 2433
  • [49] THE SYNTHESIS OF TRIPHENYLENE-BASED DISCOTIC MESOGENS - NEW AND IMPROVED ROUTES
    BODEN, N
    BORNER, RC
    BUSHBY, RJ
    CAMMIDGE, AN
    JESUDASON, MV
    LIQUID CRYSTALS, 1993, 15 (06) : 851 - 858
  • [50] Shape and sizes of micelles in nematic-calamitic and nematic-discotic mesophases: Sodium lauryl sulphate/water/decanol lyotropic system
    Nesrullajev, Arif
    MATERIALS CHEMISTRY AND PHYSICS, 2010, 123 (2-3) : 546 - 550
12345