Rheology of thermotropic liquid-crystalline dendron-modified gold nanoparticles

Masaki Matsubara, Atsushi Miyazaki, Xiangbing Zeng, Atsushi Muramatsu, Goran Ungar, Kiyoshi Kanie

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Rheological behavior across thermal phase transitions of liquid crystalline (LC) structures has been investigated using dendron-modified LC gold nanoparticles (NPs) prepared by surface modification of spherical gold NPs with LC dendrons. Such dendron-modified gold NPs self-organize to form a columnar LC structure that transforms to a simple cubic LC structure with increasing temperature. Endo- and exothermic peaks associated with this phase transition are barely observable. However, using dynamic viscoelastic measurements, the transition was observed as a drastic increase in fluidity of the dendron modified gold NPs.

Original languageEnglish
Pages (from-to)50-57
Number of pages8
JournalMolecular crystals and liquid crystals
Volume617
Issue number1
DOIs
Publication statusPublished - 2015 Aug 13

Keywords

  • Dendrimer
  • Gold Nanoparticle
  • Liquid Crystal
  • Organic-Inorganic Hybrid Material
  • Rheology

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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