Field-induced anisotropy in concentrated systems of rigid particles and macromolecules

Gerald G. Fuller*, Kaye Smith, Wesley R. Burghardt

*Corresponding author for this work

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

This paper presents experimental results on the use of spectroscopic optical polarimetry to study structure in dense systems of rigid particles and rigid polymer liquid crystals. These measurements probe microstructural anisotropy induced by the application of electric fields in the case of dense suspensions of rigid spheres, or flow fields in the case of polymer liquid crystals. It is demonstrated that conservative linear dichroism can measure moments of the particle pair distribution function in dense suspensions. In liquid crystals, the dichroism is a result of field-induced anisotropy in the defect structure of the material.

Original languageEnglish (US)
Pages (from-to)1025-1039
Number of pages15
JournalJournal of Statistical Physics
Volume62
Issue number5-6
DOIs
StatePublished - Mar 1 1991

Keywords

  • Concentrated suspensions
  • dichroism
  • electric field orientation
  • hydrodynamic orientation
  • liquid crystals
  • polarimetry
  • polymer liquid crystals
  • suspensions

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Physics and Astronomy(all)
  • Mathematical Physics

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