Melt viscosity reduction of polycarbonate with low molar mass liquid crystals

2007 ◽  
Vol 107 (2) ◽  
pp. 1108-1115 ◽  
Author(s):  
Noppawan Motong ◽  
Supakanok Thongyai ◽  
Nigel Clarke
Keyword(s):  
Liquid Crystals ◽  
Molar Mass ◽  
Viscosity Reduction ◽  
Melt Viscosity

Tilt angle measurement of low molar mass organosiloxane liquid crystals

2000 ◽  
Vol 244 (1) ◽  
pp. 331-338 ◽  
Author(s):  
C. Noot ◽  
S. P. Perkins ◽  
H. J. Coles
Keyword(s):  
Liquid Crystals ◽  
Tilt Angle ◽  
Molar Mass ◽  
Angle Measurement

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.

Photochromic and fluorescent LC gels based on a bent-shaped azobenzene-containing gelator

RSC Advances ◽  
2015 ◽  
Vol 5 (70) ◽  
pp. 56891-56895 ◽  
Author(s):  
Alexey Bobrovsky ◽  
Valery Shibaev ◽  
Věra Hamplová ◽  
Vladimíra Novotna ◽  
Miroslav Kašpar
Keyword(s):  
Liquid Crystals ◽  
Liquid Crystalline ◽  
Molar Mass ◽  
Nematic Liquid Crystals

Photochromic liquid crystalline gels based on a low-molar-mass azobenzene-containing bent-shaped gelator and nematic liquid crystals were prepared.

Sign-alternating optical reorientation in nematic liquid crystals with low-molar-mass and polymeric absorbing bis-azobenzene dopants

2021 ◽  
pp. 117141
Author(s):  
Ivan Budagovsky ◽  
Aleksey Kuznetsov ◽  
Sergey Shvetsov ◽  
Mikhail Smayev ◽  
Alexander Zolot'ko ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Molar Mass ◽  
Nematic Liquid Crystals

Ferroelectric and antiferroelectric low molar mass organosiloxane liquid crystals

1998 ◽  
Vol 25 (3) ◽  
pp. 301-307 ◽  
Author(s):  
W. K. ROBINSON ◽  
C. CARBONI ◽  
P. KLOESS ◽  
S. P. PERKINS ◽  
H. J. COLES
Keyword(s):  
Liquid Crystals ◽  
Molar Mass
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