Rheological properties of bent-core liquid crystals

C. Bailey, K. Fodor-Csorba, J. T. Gleeson, S. N. Sprunt, A. Jákli

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

We show that bent-core liquid crystalline materials exhibit non-Newtonian flow in their optically isotropic liquid phase. We conjecture that this behavior is due to the existence of nanostructured, fluctuating clusters composed of a few smectic-like layers. Shear alignment of these clusters explains the shear thinning observed in bent-core liquid crystals having either a nematic phase or non-modulated smectic phase. By contrast, smectogens having a modulated smectic phase do not shear thin at low shear rates, but even show a slight shear thickening which may be due to entanglements of wormlike and/or helical clusters.

Original languageEnglish
Pages (from-to)3618-3622
Number of pages5
JournalSoft Matter
Volume5
Issue number19
DOIs
Publication statusPublished - 2009

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Liquid Crystals
liquid crystals
shear
Non Newtonian flow
Shear thinning
Shear deformation
shear thinning
Liquids
liquid phases
alignment
liquids

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics

Cite this

Bailey, C., Fodor-Csorba, K., Gleeson, J. T., Sprunt, S. N., & Jákli, A. (2009). Rheological properties of bent-core liquid crystals. Soft Matter, 5(19), 3618-3622. https://doi.org/10.1039/b907261f

Rheological properties of bent-core liquid crystals. / Bailey, C.; Fodor-Csorba, K.; Gleeson, J. T.; Sprunt, S. N.; Jákli, A.

In: Soft Matter, Vol. 5, No. 19, 2009, p. 3618-3622.

Research output: Contribution to journalArticle

Bailey, C, Fodor-Csorba, K, Gleeson, JT, Sprunt, SN & Jákli, A 2009, 'Rheological properties of bent-core liquid crystals', Soft Matter, vol. 5, no. 19, pp. 3618-3622. https://doi.org/10.1039/b907261f
Bailey, C. ; Fodor-Csorba, K. ; Gleeson, J. T. ; Sprunt, S. N. ; Jákli, A. / Rheological properties of bent-core liquid crystals. In: Soft Matter. 2009 ; Vol. 5, No. 19. pp. 3618-3622.
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