NMR study on phase transitions in lyotropic liquid crystals caused by hydrophobic additives

1981 ◽  
Vol 5 (11-12) ◽  
Author(s):  
A. Derzhanski ◽  
A. Zheliaskova
Keyword(s):  
Phase Transitions ◽  
Liquid Crystals ◽  
Lyotropic Liquid Crystals ◽  
Nmr Study

DETECTING PHASE EQUILIBRIA IN MODELS OF THERMOTROPIC AND LYOTROPIC LIQUID CRYSTALS

1993 ◽  
Vol 07 (04) ◽  
pp. 217-232 ◽  
Author(s):  
ZHENGPING ZHANG ◽  
OLE G. MOURITSEN ◽  
MARTIN J. ZUCKERMANN
Keyword(s):  
Phase Transitions ◽  
Liquid Crystals ◽  
Phase Equilibria ◽  
Lipid Bilayer ◽  
Finite Size ◽  
Lyotropic Liquid Crystals ◽  
Lyotropic Liquid Crystal ◽  
Simulation Techniques ◽  
Thermotropic Liquid Crystals ◽  
Computer Simulation Techniques

New ways are discussed of numerically detecting the nature of phase transitions and the position of phase equilibria in models of thermotropic and lyotropic liquid crystals where the phase transitions are dominated by strong fluctuations. The cases of continuous transitions (critical points), first-order transitions, as well as the absence of transitions, are considered. It is shown how computer-simulation techniques, which operate on a free-energy level by using reweighting (histogram) techniques in combination with finite-size scaling theory, provide an effective tool for unambiguously determining the nature of the transition and the position of associated phase equilibria. Three specific models are considered: the Lebwohl–Lasher model of the nematic–isotropic transition in thermotropic liquid crystals, the mismatch model of the main chain-melting phase transition in lipid-bilayer lyotropic liquid crystals, and a model for critical mixing in a lipid-bilayer lyotropic liquid crystal incorporated with trans-bilayer polypeptides.

Micellar structures in lyotropic liquid crystals and phase transitions

1991 ◽  
Vol 174 (1) ◽  
pp. 195-207 ◽  
Author(s):  
A. Saupe ◽  
S.Y. Xu ◽  
Sulakshana Plumley ◽  
Y.K. Zhu ◽  
P. Photinos
Keyword(s):  
Phase Transitions ◽  
Liquid Crystals ◽  
Lyotropic Liquid Crystals
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