Mechanical Properties of Electron Beam Cured Monomer and Monomer/Liquid Crystal Films

2002 ◽  
Vol 287 (10) ◽  
pp. 656-659 ◽  
Author(s):  
Aline Olivier ◽  
Tadeusz Pakula ◽  
Bernd Ewen ◽  
Xavier Coqueret ◽  
Mustapha Benmouna ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Electron Beam ◽  
Liquid Crystal ◽  
Liquid Crystal Films ◽  
Crystal Films

Attractive mode force microscopy of chiral liquid crystal surfaces

1992 ◽  
Vol 50 (1) ◽  
pp. 268-269
Author(s):  
B.D. Terris ◽  
R. J. Twieg ◽  
C. Nguyen ◽  
G. Sigaud ◽  
H. T. Nguyen
Keyword(s):  
Liquid Crystal ◽  
Crystal Surfaces ◽  
Free Surfaces ◽  
Control Range ◽  
Force Microscopy ◽  
Liquid Crystal Films ◽  
Chiral Liquid Crystal ◽  
Crystal Films ◽  
Electrostatic Charging ◽  
And Shifts

We have used a force microscope in the attractive, or noncontact, mode to image a variety of surfaces. In this mode, the microscope tip is oscillated near its resonant frequency and shifts in this frequency due to changes in the surface-tip force gradient are detected. We have used this technique in a variety of applications to polymers, including electrostatic charging, phase separation of ionomer surfaces, and crazing of glassy films.Most recently, we have applied the force microscope to imaging the free surfaces of chiral liquid crystal films. The compounds used (Table 1) have been chosen for their polymorphic variety of fluid mesophases, all of which exist within the temperature control range of our force microscope.

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