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Issue 3, 2011
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Tertiary amine solvents having switchable hydrophilicity

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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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Publication details

The article was received on 12 Nov 2010, accepted on 13 Dec 2010 and first published on 03 Feb 2011


Article type: Paper
DOI: 10.1039/C0GC00806K
Citation: 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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