Determination of solubility parameters of ionic liquids and ionic liquid/solvent mixtures from intrinsic viscosity

Piyarat Weerachanchai, Yuewen Wong, Kok Hwa Lim, Timothy Thatt Yang Tan, Jong Min Lee*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

43 Citations (Scopus)

Abstract

The total and partial solubility parameters (dispersion, polar and hydrogen-bonding solubility parameters) of ten ionic liquids were determined. Intrinsic viscosity approaches were used that encompassed a one-dimensional method (1D-Method), and two different three-dimensional methods (3D-Method1 and 3D-Method2). The effect of solvent type, the dimethylace-tamide (DMA) fraction in the ionic liquid, and dissolution temperature on solubility parameters were also investigated. For all types of effect, both the 1D-Method and 3D-Method2 present the same trend in the total solubility parameter. The partial solubility parameters are influenced by the cation and anion of the ionic liquid. Considering the effect on partial solubility parameters of the solvent type in the ionic liquid, it was observed that in both 3D methods, the dispersion and polar parameters of a 1-ethyl-3-methylimidazolium acetate/solvent (60:40 vol%) mixture tend to increase as the total solubility parameter of the solvent increases.

Original languageEnglish
Pages (from-to)3580-3591
Number of pages12
JournalChemPhysChem
Volume15
Issue number16
DOIs
Publication statusPublished - Nov 3 2014
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2014 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.

ASJC Scopus Subject Areas

  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry

Keywords

  • Hydrogen bonds
  • Ion pairs
  • Ionic liquids
  • Noncovalent interactions
  • Solvent effects

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