New Liquid Crystals: The Synthesis and Mesomorphic Properties of Alkenylsubstituted Cyanophenylethylcyclohexanes and Cyanobiphenylylcyclohexanes

1986 ◽  
Vol 131 (3) ◽  
pp. 327-342 ◽  
Author(s):  
Martin Petrzilka ◽  
Alfred Germann
Keyword(s):  
Liquid Crystals ◽  
Mesomorphic Properties

Tuning mesomorphic properties and handedness of chiral calamitic liquid crystals by minimal modification of the effective core

Chirality ◽  
2011 ◽  
Vol 23 (1E) ◽  
pp. E74-E83 ◽  
Author(s):  
Anhua Liu ◽  
Qiming Sun ◽  
Jiaxi Cui ◽  
Jia Zheng ◽  
Wenjian Liu ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Minimal Modification ◽  
Mesomorphic Properties

Effect of counter ions on the mesogenic ionic N-phenylpyridiniums

CrystEngComm ◽  
2018 ◽  
Vol 20 (18) ◽  
pp. 2593-2607 ◽  
Author(s):  
Ren-Tzong Wang ◽  
Gene-Hsiang Lee ◽  
Chung K. Lai
Keyword(s):  
Ionic Liquid ◽  
Liquid Crystals ◽  
Counter Ions ◽  
Ionic Liquid Crystals ◽  
Mesomorphic Properties

Two series of ionic liquid crystals (ILCs) derived from N-phenylpyridinium 1–2 were prepared and their mesomorphic properties were investigated.

The effect of a lateral methoxy group on the mesomorphic properties of ferroelectric liquid crystals

1995 ◽  
Vol 19 (6) ◽  
pp. 775-778 ◽  
Author(s):  
M. Kašpar ◽  
H. Sverenyák ◽  
V. Hamplová ◽  
M. Glogarová ◽  
S. A. Pakhomov ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Methoxy Group ◽  
Ferroelectric Liquid Crystals ◽  
Mesomorphic Properties

scholarly journals Synthesis and mesomorphic properties of liquid crystals containing a perfluorinated segment via different linkers

2017 ◽  
Vol 197 ◽  
pp. 15-23 ◽  
Author(s):  
Samir Marzouk ◽  
Ali Khalfallah ◽  
Benoît Heinrich ◽  
Jamel Eddine Khiari ◽  
Abdelkader Kriaa ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Mesomorphic Properties

scholarly journals 1-(4-Alkyloxybenzyl)-3-methyl-1H-imidazol-3-ium organic backbone: A versatile smectogenic moiety

2009 ◽  
Vol 5 ◽  
Author(s):  
William Dobbs ◽  
Laurent Douce ◽  
Benoît Heinrich
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Liquid Crystal ◽  
Liquid Crystals ◽  
Common Element ◽  
Crystal Fields ◽  
Single Compound ◽  
Imidazolium Ring ◽  
Mesomorphic Properties

The merger of ionic liquid and liquid crystal fields, obtained by using the imidazolium ring as a common element, has allowed us to tailor a new set of materials which associate specific functionalities. These functionalities are consequences of the original properties of the component, ionic liquids, liquid crystals and their association in a single compound. The study of this interesting association led us to elaborate environment-flexible cationic architectures from which mesomorphic properties emerge. Moreover, we have also explored the influence of different anions on the mesomorphic properties.

Synthesis and Mesomorphic Properties of New Liquid Crystalline Cyclohexyl-phenyl- and Dicyclohexyl-pyrimidines

1979 ◽  
Vol 34 (11) ◽  
pp. 1535-1541 ◽  
Author(s):  
Alois Villiger ◽  
Arthur Boiler ◽  
Martin Schadt
Keyword(s):  
Liquid Crystals ◽  
Liquid Crystalline ◽  
Alkyl Chain ◽  
Viscosity Reduction ◽  
Refractive Indices ◽  
Thermal Compatibility ◽  
Chain Lengths ◽  
New Compounds ◽  
Mesomorphic Properties ◽  
End Group

Abstract Liquid Crystals, Cyclohexyl-phenyl-pyrimidines, Dicyclohexyl-pyrimidines The synthesis and mesomorphic properties of three new classes of cyano-substituted cyclohexyl-phenyl-and dicyclohexyl-pyrimidines are reported. The compounds are colourless, chemically and photochemically stable and have wide nematic mesophases. The thermal compatibility of the new compounds with other nematic liquid crystals is excellent. The large static positive dielectric anisotropics are shown to depend strongly on the position and number of hydrogenated rings as well as on the alkyl chain lengths within a homologous series. The reported bulk viscosities vary considerably among homologues. Hydrogenating the ring adjacent to the cyano end group causes η to increase, whereas a considerable viscosity reduction compared to nonhydrogenated homologues was found by hydrogenating the ring adjacent to the alkyl end group. The measured refractive indices of the new compounds are comparable to those of biphenyls.

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