Extendability of Equilibria of Nematic Polymers

Abstract

The purpose of this paper is to study the extendability of equilibrium states of rodlike nematic polymers with the Maier-Saupe intermolecular potential. We formulate equilibrium states as solutions of a nonlinear system and calculate the determinant of the Jacobian matrix of the nonlinear system. It is found that the Jacobian matrix is nonsingular everywhere except at two equilibrium states. These two special equilibrium states correspond to two points in the phase diagram. One point is the folding point where the stable prolate branch folds into the unstable prolate branch; the other point is the intersection point of the nematic branch and the isotropic branch where the unstable prolate state becomes the unstable oblate state. Our result establishes the existence and uniqueness of equilibrium states in the presence of small perturbations away from these two special equilibrium states.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2008
Accession Number
ADA528023

Entities

People

  • Hong Zhou
  • Hongyun Wang

Organizations

  • Naval Postgraduate School

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Applied Mathematics
  • Axisymmetric
  • Coordinate Systems
  • Diagrams
  • Equations
  • Liquid Crystal Polymers
  • Liquid Crystals
  • Mathematical Analysis
  • Mathematics
  • Nonlinear Systems
  • Perturbations
  • Phase
  • Phase Diagrams
  • Polymers
  • Probability
  • Probability Density Functions

Readers

  • Calculus or Mathematical Analysis
  • Plasma Physics / Magnetohydrodynamics
  • Polymer Science and Technology