Physico-chemical properties of non-newtonian shear thickening diisopropyl-ethylammonium-based protic ionic liquids and their mixtures with water and acetonitrile

Johan Jacquemin*, Mérièm Anouti, Daniel Lemordant

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)
371 Downloads (Pure)

Abstract

New protic ionic liquids (PILs) based on the diisopropyl-ethylammonium cation have been synthesized through a simple and atom-economic neutralization reaction between the diisopropyl-ethylamine and selected carboxylic acid. Densities and rheological properties were then measured for two original diisopropyl-ethylammonium-based protic ionic liquids (heptanoate and octanoate) at 298.15 K and atmospheric pressure. The effect of the presence of water or acetonitrile on the measured values was also examined over the whole composition range at 298.15 K and atmospheric pressure. From these values, excess properties were calculated and correlated by using a Redlich−Kister-type equation. Finally, a qualitative analysis of the evolution of studied properties with the alkyl chain length of the anion and with the presence or not of water (or acetonitrile) was performed. From this analysis, it appears that selected PILs and their mixtures with water or acetonitrile have a non-Newtonian shear thickening behavior, and the addition of water or acetonitrile on these PILs increases this phenomena by the formation of aggregates in these media.

Original languageEnglish
Pages (from-to)556-564
JournalJournal of Chemical and Engineering Data
Volume56
Issue number3
Early online date10 Feb 2011
DOIs
Publication statusPublished - 10 Mar 2011
Externally publishedYes

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering

Fingerprint

Dive into the research topics of 'Physico-chemical properties of non-newtonian shear thickening diisopropyl-ethylammonium-based protic ionic liquids and their mixtures with water and acetonitrile'. Together they form a unique fingerprint.

Cite this