scholarly journals THE NEMATIC PHASE OF A SYSTEM OF LONG HARD RODS

2013 ◽  
pp. 558-566
Author(s):  
A. GIULIANI
Keyword(s):  
Nematic Phase ◽  
Hard Rods

scholarly journals The Nematic Phase of a System of Long Hard Rods

2013 ◽  
Vol 323 (1) ◽  
pp. 143-175 ◽  
Author(s):  
Margherita Disertori ◽  
Alessandro Giuliani
Keyword(s):  
Nematic Phase ◽  
Hard Rods

scholarly journals A Simple Free Energy for the Isotropic-Nematic Phase Transition of Rods

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Remco Tuinier
Keyword(s):  
Free Energy ◽  
Nematic Phase ◽  
Analytical Form ◽  
Orientation Distribution ◽  
Scaled Particle Theory ◽  
Particle Theory ◽  
Aspect Ratios ◽  
Wide Range ◽  
Hard Rods ◽  
Simple Analytical Form

A free energy expression is proposed that describes the isotropic-nematic binodal concentrations of hard rods. A simple analytical form for this free energy was yet only available using a Gaussian trial function for the orientation distribution function (ODF), leading, however, to a significant deviation of the predicted binodals. The new free energy proposed here is based upon a rationalized correction to the orientational and packing entropies when using the Gaussian ODF. In combination with Parsons-Lee theory or scaled particle theory, it enables describing the isotropic-nematic phase coexistence concentrations of rods accurately using the simple Gaussian ODF for a wide range of aspect ratios.

scholarly journals Morphology and Kinetics of the Isotropic−Nematic Phase Transition in Dispersions of Hard Rods

1999 ◽  
Vol 32 (7) ◽  
pp. 2256-2264 ◽  
Author(s):  
M. P. B. van Bruggen ◽  
J. K. G. Dhont ◽  
H. N. W. Lekkerkerker
Keyword(s):  
Phase Transition ◽  
Nematic Phase ◽  
Hard Rods ◽  
Kinetics Of

scholarly journals Nematic-nematic phase separation in binary mixtures of thick and thin hard rods: Results from Onsager-like theories

2005 ◽  
Vol 72 (5) ◽  
Author(s):  
Szabolcs Varga ◽  
Kirstin Purdy ◽  
Amparo Galindo ◽  
Seth Fraden ◽  
George Jackson
Keyword(s):  
Phase Separation ◽  
Binary Mixtures ◽  
Nematic Phase ◽  
Hard Rods

scholarly journals Isotropic–nematic phase behavior of length-polydisperse hard rods

2003 ◽  
Vol 119 (13) ◽  
pp. 6868-6882 ◽  
Author(s):  
H. H. Wensink ◽  
G. J. Vroege
Keyword(s):  
Phase Behavior ◽  
Nematic Phase ◽  
Hard Rods

scholarly journals Lyotropic colloidal and macromolecular liquid crystals

1993 ◽  
Vol 344 (1672) ◽  
pp. 419-440 ◽  
Keyword(s):  
Phase Transition ◽  
Nematic Phase ◽  
Concentrated Solutions ◽  
Flexible Chain ◽  
Chain Molecules ◽  
Charged Colloids ◽  
Hard Rods ◽  
Crystal Phases ◽  
Soft Interactions ◽  
Theoretical Results

We review the theory of the isotropic—nematic phase transition for solutions of thin hard rods and semi-flexible chain molecules along with the extensions to polydisperse systems and soft interactions. The occurrence of more highly ordered liquid crystal phases (smectic, columnar) in concentrated solutions of colloids and macromolecules is discussed briefly. Experimental results for a number of carefully studied uncharged and charged colloids and macromolecules are compared to theoretical results.

Sign in / Sign up

Export Citation Format

Share Document