A Smectic-A Type Lamellar Amphiphilic Lyotropic Liquid Crystal Phase

1984 ◽  
Vol 102 (10) ◽  
pp. 317-324 ◽  
Author(s):  
Keith Radley
Keyword(s):  
Liquid Crystal ◽  
Lyotropic Liquid Crystal ◽  
Crystal Phase ◽  
Liquid Crystal Phase ◽  
Smectic A

The pathway and kinetics of hierarchical assembly of ionic oligomers into a lyotropic columnar phase

Soft Matter ◽  
2019 ◽  
Vol 15 (22) ◽  
pp. 4460-4466
Author(s):  
Weiheng Huang ◽  
Shenghui Wei ◽  
Daan Frenkel ◽  
Ningdong Huang
Keyword(s):  
Liquid Crystal ◽  
Supramolecular Assembly ◽  
Lyotropic Liquid Crystal ◽  
Crystal Phase ◽  
Liquid Crystal Phase ◽  
Hierarchical Assembly ◽  
Columnar Phase ◽  
Kinetics Of

In situ investigations on the formation of a lyotropic liquid crystal phase through supramolecular assembly in solution suggest a multi-step pathway.

Lyotropic liquid crystal phase behavior of polymeric siloxane surfactants

Langmuir ◽  
1993 ◽  
Vol 9 (11) ◽  
pp. 2789-2798 ◽  
Author(s):  
Randal M. Hill ◽  
Mengtao He ◽  
Zuchen Lin ◽  
H. Ted Davis ◽  
L. E. Scriven
Keyword(s):  
Liquid Crystal ◽  
Phase Behavior ◽  
Lyotropic Liquid Crystal ◽  
Crystal Phase ◽  
Liquid Crystal Phase

scholarly journals Topological defects and geometric memory across the nematic–smectic A liquid crystal phase transition

Soft Matter ◽  
2019 ◽  
Author(s):  
Ahram Suh ◽  
Min-Jun Gim ◽  
Daniel Beller ◽  
Dong Ki Yoon
Keyword(s):  
Phase Transition ◽  
Liquid Crystal ◽  
Topological Defects ◽  
Crystal Phase ◽  
Liquid Crystal Phase ◽  
Smectic A ◽  
Crystal Phase Transition ◽  
Liquid Crystal Phase Transition

We study transformations of self-organised defect arrays at the nematic–smectic A liquid crystal phase transition, and show that these defect configurations are correlated, or “remembered”, across the phase transition.

Rigid-Rod And Segmented Rigid-Rod Polyimides: GEL/SOL And Liquid Crystalline Transitions, Fibers And Films

1991 ◽  
Vol 227 ◽  
Author(s):  
Stephen Z. D. Cheng ◽  
Fred E. Arnold ◽  
Mark Eashoo ◽  
Song-Koo Lee ◽  
Steve L. C. Hsu ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
High Performance ◽  
Liquid Crystalline ◽  
Elevated Temperatures ◽  
Dielectric Constants ◽  
Lyotropic Liquid Crystal ◽  
Crystal Phase ◽  
Liquid Crystal Phase ◽  
Initial Modulus ◽  
Rigid Rod

ABSTRACTOrgano-soluble rigid-rod and segmented rigid-rod polyimides and their copolyimides exhibit isotropic solutions in hot m-cresol, but form gels upon cooling. A lyotropic liquid crystal phase is observed below the gel/sol transition. Mechanical gel formation is caused by liquid-liquid phase separation, while the liquid crystal phase may be formed through a nucleation process after gelation. High performance fibers can be spun from the hot isotropic solutions using a dry-jet wet spinning method. After the fibers are drawn at high temperatures, they display tensile strength higher than 3.2 GPa and an initial modulus higher than 130 GPa. In particular, the fibers retain relatively high mechanical properties at elevated temperatures. Solution casted films exhibit very low thermal expansion coefficients and dielectric constants. Their structure, morphology and property relationships will also be discussed.

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