Nanocomposite of polymer liquid crystal/single wall carbon nanotubes: isothermal and non-isothermal phase kinetics

2019 ◽  
Author(s):  
Ginka Exner ◽  
Yordan Marinov ◽  
Ernesto Pérez ◽  
Subarao Krishna Prasad ◽  
Channabasaveshwar V. Yelamaggad ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Liquid Crystal ◽  
Single Wall Carbon Nanotubes ◽  
Polymer Liquid ◽  
Single Wall Carbon ◽  
Polymer Liquid Crystal

Liquid crystal behavior of single wall carbon nanotubes

Carbon ◽  
2010 ◽  
Vol 48 (12) ◽  
pp. 3531-3542 ◽  
Author(s):  
M. Bravo-Sanchez ◽  
Trevor J. Simmons ◽  
M.A. Vidal
Keyword(s):  
Carbon Nanotubes ◽  
Liquid Crystal ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon

scholarly journals Reorientation of single-wall carbon nanotubes in negative anisotropy liquid crystals by an electric field

2016 ◽  
Vol 7 ◽  
pp. 825-833 ◽  
Author(s):  
Amanda García-García ◽  
Ricardo Vergaz ◽  
José F Algorri ◽  
Gianluigi Zito ◽  
Teresa Cacace ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Liquid Crystal ◽  
Liquid Crystals ◽  
Electric Field ◽  
Single Wall Carbon Nanotubes ◽  
Single Wall Carbon ◽  
Self Organized ◽  
Crystal Properties ◽  
Microscopic Inspection ◽  
Liquid Crystal Orientation

Single-wall carbon nanotubes (SWCNT) are anisotropic nanoparticles that can cause modifications in the electrical and electro-optical properties of liquid crystals. The control of the SWCNT concentration, distribution and reorientation in such self-organized fluids allows for the possibility of tuning the liquid crystal properties. The alignment and reorientation of CNTs are studied in a system where the liquid crystal orientation effect has been isolated. Complementary studies including Raman spectroscopy, microscopic inspection and impedance studies were carried out. The results reveal an ordered reorientation of the CNTs induced by an electric field, which does not alter the orientation of the liquid crystal molecules. Moreover, impedance spectroscopy suggests a nonnegligible anchoring force between the CNTs and the liquid crystal molecules.

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