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New fluorous/organic biphasic systems achieved by solvent tuning.

Qianli Chu¹, Marvin S Yu, Dennis P Curran

¹Fluorous Technologies, Inc., University of Pittsburgh Applied Research Center, 970 William Pitt Way, Pittsburgh, Pennsylvania 15238.

|July 16, 2010

Summary

Researchers identified new biphasic solvent systems using hydrofluoroethers for improved separation. Solvent tuning strategies were developed to control the solubility of fluorous compounds, aiding catalysis and extraction applications.

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Area of Science:

Chemistry
Materials Science

Background:

Biphasic systems offer unique separation capabilities.
Hydrofluoroether solvents present novel opportunities for creating such systems.

Purpose of the Study:

To explore miscibility of fluorous and organic solvents.
To identify novel biphasic systems utilizing hydrofluoroethers.
To develop solvent tuning strategies for optimizing separation.

Main Methods:

Performed miscibility tests on sixty fluorous/organic solvent pairs.
Measured mutual solubilities to define biphasic system compositions.
Applied solvent tuning based on polarity and fluorophilicity/phobicity.

Main Results:

Identified several biphasic systems based on hydrofluoroether solvents.

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Demonstrated solvent tuning to modulate partition coefficients of triarylphosphines.

Established a correlation between solvent properties and separation efficiency.

Conclusions:

Hydrofluoroether-based biphasic systems are viable for separation.
Solvent tuning provides a method to control partitioning of fluorous compounds.
These systems offer a foundation for advanced catalysis and extraction technologies.