Diffraction patterns of binary liquid crystal gratings in homeotropic and hybrid geometries

2004 ◽  
Vol 24 (1-2) ◽  
pp. 247-250 ◽  
Author(s):  
Chang-Jae Yu ◽  
Jae-Hong Park ◽  
Jinyool Kim ◽  
Min-Sik Jung ◽  
Sin-Doo Lee
1990 ◽  
Vol 04 (13) ◽  
pp. 841-845
Author(s):  
RUOZI QIU ◽  
JOHN T. HO

Properties near the nematic-smectic-A-smectic-C multicritical point present in binary liquid-crystal mixtures are reviewed. Recent dynamic Fréedericksz deformation and quasielastic light-scattering results are described and their relationship with data from X-ray scattering and static light scattering is discussed.


1979 ◽  
Vol BME-26 (3) ◽  
pp. 148-152 ◽  
Author(s):  
Thomas H. Windhorn ◽  
Charles A. Cain

2000 ◽  
Vol 113 (20) ◽  
pp. 9300-9309 ◽  
Author(s):  
Akihiko Matsuyama ◽  
Tadaya Kato

2007 ◽  
Vol 46 (9A) ◽  
pp. 5920-5923 ◽  
Author(s):  
Surajit Dhara ◽  
Khoa Van Le ◽  
Yoichi Takanishi ◽  
Hideo Takezoe

Author(s):  
S. Diele ◽  
G. Pelzl ◽  
A. Humke ◽  
S. Wünsch ◽  
W. Schäfer ◽  
...  

Author(s):  
N. K. Sharma ◽  
I. Müller ◽  
R. Wingen ◽  
H. R. Dübal ◽  
C. Escher ◽  
...  
Keyword(s):  

Author(s):  
Eva Enz ◽  
Ute Baumeister ◽  
Jan Lagerwall

With the relatively new technique of coaxial electrospinning, composite fibres of poly(vinylpyrrolidone) with the liquid crystal 4-cyano-4′-octylbiphenyl in its smectic phase as core material could be produced. The encapsulation leads to remarkable confinement effects on the liquid crystal, inducing changes in its phase sequence. We conducted a series of experiments to determine the effect of varying the relative flow rates of inner and outer fluid as well as of the applied voltage during electrospinning on these composite fibres. From X-ray diffraction patterns of oriented fibres we could also establish the orientation of the liquid crystal molecules to be parallel to the fibre axis, a result unexpected when considering the viscosity anisotropy of the liquid crystal kept in its smectic phase during electrospinning.


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