Smectic membranes in aqueous environment

Yasutaka Iwashita, Stephan Herminghaus, Ralf Seemann, Christian Bahr

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We present a study of thermotropic smectic liquid crystal films in aqueous environment. Macroscopic freely suspended films in water with a size up to 7.4×15 mm2 were prepared with the help of a surfactant, which ensures a strong homeotropic anchoring at liquid crystal/water interfaces. The films were studied by optical microscopy and ellipsometry. Attention was paid to the stability and the thinning transitions which occurred at temperatures above the bulk smectic- A -isotropic transition temperature. In addition, we investigated the formation and rupture kinetics of thin smectic membranes separating water droplets in microfluidic devices. Besides possible applications in discrete microfluidics, smectic films in aqueous environment may expand the general range of possible studies of freely suspended smectic films.

Original languageEnglish
Article number051709
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume81
Issue number5
DOIs
Publication statusPublished - May 21 2010

Fingerprint

Membrane
membranes
Microfluidics
Water
Liquid Crystal
liquid crystals
water
Ellipsometry
microfluidic devices
Thinning
Rupture
Surfactant
Microscopy
Expand
ellipsometry
Kinetics
transition temperature
surfactants
microscopy
kinetics

All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

Cite this

Smectic membranes in aqueous environment. / Iwashita, Yasutaka; Herminghaus, Stephan; Seemann, Ralf; Bahr, Christian.

In: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, Vol. 81, No. 5, 051709, 21.05.2010.

Research output: Contribution to journalArticle

Iwashita, Yasutaka ; Herminghaus, Stephan ; Seemann, Ralf ; Bahr, Christian. / Smectic membranes in aqueous environment. In: Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. 2010 ; Vol. 81, No. 5.
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