Three in one: mesogenic aromatic acid as a liquid crystal matrix, a chiral dopant in liquid crystals and a stabilizer for nanoparticles

A.S. Merekalov, G.A. Shandryuk, V.S. Bezborodov, O.A. Otmakhova, S.G. Mikhalyonok, N.M. Kuz'menok, A.S. Arol, M.A. Osipov, R.V. Talroze

Research output: Contribution to journalArticle

Abstract

Studies of thermodynamics of the N*-I phase transitions and optical properties of the new liquid crystal - (R)-2-[4″-(trans-4-butylcyclohexyl)-2′-chloro-p-terphenyl-4-oxy] propanoic acid are carried out. The aim of these studies is to analyze the capabilities of that liquid crystal to simultaneously serve as a matrix for inorganic semiconductor nanoparticles (NP) as well as a chiral dopant for liquid crystals and a chiral ligand stabilizing the surface of CdSe NPs. The chiral doping of a nematic liquid crystal was proven by the measurements of selective transmittance of the visible light. The embedding of NPs in a nematic liquid crystal leads to the increase in TN⁎I, which is explained by the shape anisotropy of the NPs. The anisotropy of the ligand shell may result from the interaction between the ligand and LC matrix inducing the change of the spherical shape of the shell toward the ellipsoidal one. TN⁎I of the liquid crystal matrix of (R)-2-[4″-(trans-4-butylcyclohexyl)-2′-chloro-p-terphenyl-4-oxy] propanoic acid (R-MPA) decreases with the embedding of NPs stabilized by the same ligands, which is in a good agreement with prior experimental results and theory, but there exists a considerable quantitative difference.

Original languageEnglish
Pages (from-to)588-594
Number of pages7
JournalJournal of Molecular Liquids
Volume276
Early online date7 Dec 2018
DOIs
Publication statusPublished - 15 Feb 2019

Keywords

  • thermodynamics
  • liquid crystal
  • matrix
  • semiconductor nanoparticles
  • nematic liquid crystal

Fingerprint Dive into the research topics of 'Three in one: mesogenic aromatic acid as a liquid crystal matrix, a chiral dopant in liquid crystals and a stabilizer for nanoparticles'. Together they form a unique fingerprint.

  • Cite this

    Merekalov, A. S., Shandryuk, G. A., Bezborodov, V. S., Otmakhova, O. A., Mikhalyonok, S. G., Kuz'menok, N. M., Arol, A. S., Osipov, M. A., & Talroze, R. V. (2019). Three in one: mesogenic aromatic acid as a liquid crystal matrix, a chiral dopant in liquid crystals and a stabilizer for nanoparticles. Journal of Molecular Liquids, 276, 588-594. https://doi.org/10.1016/j.molliq.2018.12.036