abstract
Ionic liquids have become a green media for engineering applications due to exceptional physicochemical properties, such as their practically nonvolatile nature, null flammability, low melting point, high ionic conductivity, and thermal and electrochemical stability. This work aimed to select the best fluorinated ionic liquids for the following applications: recovery/recycling of perfluorocarbon contaminants such as greenhouse perfluorocarbons gases and perfluoroalkyl acids of industrial effluents that are persistent, bioaccumulative, and toxic, and the partial or total replacement of inert perfluorocarbons in oxygen therapeutic emulsions by enhancing the emulsion stability and increasing the solubility of respiratory gas. With this dual goal in mind, thermodynamic and thermophysical properties of fluorinated ionic liquids (FILs) and their toxicity and biocompatibility are discussed so that the feasibility of the proposed applications can be evaluated. Herein, FILs are defined as ionic liquids with fluorinated chain lengths equal or greater than four carbon atoms. This paper provides a critical review of the experimental data for fluorinated ionic liquids available in the literature, and subsequently, with the aim of expanding knowledge of FILs, eight new fluorinated ionic liquids were selected for characterization. The attained results will clearly impact applications using polyfluorinated compounds.
keywords
CACO-2 CELL-LINE; CARBON-DIOXIDE; MOLECULAR SIMULATION; BLOOD SUBSTITUTES; OXYGEN CARRIERS; SOLUBILITY; TEMPERATURE; CATIONS; ANIONS; CYTOTOXICITY
subject category
Chemistry; Science & Technology - Other Topics; Engineering
authors
Pereiro, AB; Araujo, JMM; Martinho, S; Alves, F; Nunes, S; Matias, A; Duarte, CMM; Rebelo, LPN; Marrucho, IM
our authors
Isabel Maria Delgado Jana Marrucho Ferreira
Full professorGroups
Projects
Development of New Oxygen Therapeutics using Fluorinated Ionic Liquids (PTDC/EQU-FTT/118800/2010)
acknowledgements
A. B. Pereiro would like to acknowledge Marie Curie Actions Intra-European Fellowships (IEF) for a contract under FP7-PEOPLE-2009-IEF - 252355 HALOGENILS and for financial support of FCT/MCTES (Portugal) by way of Post-Doc grant SFRH/BPD/84433/2012. J. M. M. Araujo gratefully acknowledges the financial support of FCT/MCTES by way of the Post-Doc grant SFRH/BPD/65981/2009. I. M. Marrucho acknowledges FCT/MCTES for a contract under Programa Ciencia 2007. We also wish to thank the Fundacao para a Ciencia e Tecnologia for Project PTDC/EQU-FTT/118800/2010.