Imidazolium Magnetic Ionic Liquid Solubilities in Water

Author

Ward Toler, University of Mississippi. Sally McDonnell Barksdale Honors College

Date of Award

2018

Document Type

Undergraduate Thesis

Department

Chemical Engineering

First Advisor

Paul Scovazzo

Relational Format

Dissertation/Thesis

Abstract

Magnetic ionic liquids (MILs) are room temperature ionic liquids that exhibit paramagnetic behavior. These liquids have tunable physiochemical properties with proposed applications in separations and drug delivery. It is, therefore, useful to know the solubility and micellar behavior of MILs in aqueous environments. Our group synthesized MILs with a FeCl4 anion and 1-alkyl-3-methylimidazolium cations and investigated aqueous solubility vs alkyl size (C2 through C10). We measured water solubility (MIL content in water saturated with the MIL) using UV-Vis spectroscopy, total organic carbon (TOC) analysis, and Total Nitrogen (TN) analysis. After observing micellar behavior for C(n)mim[FeCl4], where n > 6, we investigated the critical micelle concentration (CMC) of these MILs. Finally, we used Linear Free Energy Relationship (LFER) semi-empirical models to correlate the MIL water solubility to the MIL's molecular volume. In the future, this LFER can predict the solubility of a MIL in water before the MIL is synthesized.

Recommended Citation

Toler, Ward, "Imidazolium Magnetic Ionic Liquid Solubilities in Water" (2018). Honors Theses. 1255.
https://egrove.olemiss.edu/hon_thesis/1255

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