Amphiphilic nanostructure in choline carboxylate and amino acid ionic liquids and solutions

Shurui Miao, Rob Atkin, Gregory G. Warr

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The liquid structures of six choline carboxylate/amino acid ionic liquids (bio-ILs) and their mixtures with water and various n-alkanols have been investigated by small-angle X-ray scattering (SAXS). The ILs exhibit long-range amphiphilic nanostructure comprised of polar and apolar domains that can be controlled by choice of anion, and which is tolerant to water dilution. Mixtures with n-alkanols can lead to marked changes in domain size and ordering. Utilising the Teubner-Strey model, we find amphiphilicity factors in many of these mixtures are comparable to those observed in conventional microemulsions, and that cooperative assembly in bio-IL/alkanol mixtures can enhance amphiphilicity, with potential to improve performance in a range of applications.

Original languageEnglish
Pages (from-to)3490-3498
Number of pages9
JournalPhysical Chemistry Chemical Physics
Volume22
Issue number6
DOIs
Publication statusPublished - 14 Feb 2020

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