Issue 3, 2011
From the journal:

Green Chemistry

Tertiary aminesolvents having switchable hydrophilicity†

Philip G. Jessop,*a   Lisa Kozycz,a   Zahra Ghoshouni Rahami,a   Dylan Schoenmakers,a   Alaina R. Boyd,a   Dominik Wechslerb  and  Amy M. Hollandb  

* Corresponding authors

a Department of Chemistry, Queen's University, Kingston, Ontario, Canada
E-mail: jessop@chem.queensu.ca
Fax: +1 (613) 533-6669
Tel: +1 (613) 533-3212

b GreenCentre Canada, 945 Princess St., Kingston, ON, Canada

Abstract

Several tertiary amines serve as switchable-hydrophilicity solvents, meaning that they are hydrophobic solvents having very low miscibility with water when under air but hydrophilic solvents having complete miscibility with water when under an atmosphere of CO2. Unlike the only previously reported switchable-hydrophilicity solvent, these amines are easily prepared and, in some cases, commercially available. The effect of temperature, gas flow rates, choice of amine and additives on the switching process is described. These solvents can be applied to the recycling of polystyrene foam.

Graphical abstract: Tertiary amine solvents having switchable hydrophilicity

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Article information

DOI
https://doi.org/10.1039/C0GC00806K
Article type
Paper
Submitted
12 Nov 2010
Accepted
13 Dec 2010
First published
03 Feb 2011

Green Chem., 2011,13, 619-623

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Tertiary amine solvents having switchable hydrophilicity

P. G. Jessop, L. Kozycz, Z. G. Rahami, D. Schoenmakers, A. R. Boyd, D. Wechsler and A. M. Holland, Green Chem., 2011, 13, 619 DOI: 10.1039/C0GC00806K

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