Liquid crystal wetting in cylindrical pores

Xuewu Liu, Daniele Finotello

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

We have performed a calorimetry and deuterium nuclear magnetic resonance study for a member of the liquid crystal homologous series, n̄.O.m̄ , in bulk and confined to the 0.2 μm cylindrical pores of aluminum oxide Anopore membranes. It was shown in an ellipsometry study by Lucht and coworkers that this material shows a prewetting nematic transition at an air interface. Thermodynamically, at the Anopore solid pore walls these liquid crystals also exhibit unique wetting properties: a distinct signature in the specific heat, a "bump" at a temperature approximately 0.5 K above TNI is found. We believe that such signature is related to the manner that the nematic liquid crystal wets the solid surfaces.

Original languageEnglish (US)
Pages (from-to)341-351
Number of pages11
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume367
DOIs
StatePublished - 2001

Keywords

  • Confinement
  • Specific heat
  • Wetting

ASJC Scopus subject areas

  • Condensed Matter Physics

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