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Issue 3, 2012
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Design, synthesis, and solution behaviour of small polyamines as switchable water additives

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Abstract

The practice of adding salt to water to induce salting out of contaminants or to break emulsions and suspensions is generally avoided industrially because of the expense of the necessary treatment of the salty water afterwards. However, the use of switchable water, an aqueous solvent with switchable ionic strength, allows for reversible generation and elimination of salts in aqueous solution, through the introduction and removal of CO2. In the effort to improve the efficiency of these switchable salts, a physical study modeling their reactivity and solution behaviour has been performed, resulting in a set of design principles for future switchable water additives. The resulting polyamines synthesized using this template show the highest efficiency recorded for a switchable water additive.

Graphical abstract: Design, synthesis, and solution behaviour of small polyamines as switchable water additives

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Publication details

The article was received on 06 Oct 2011, accepted on 21 Dec 2011 and first published on 09 Feb 2012


Article type: Paper
DOI: 10.1039/C2GC16240G
Green Chem., 2012,14, 832-839

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    Design, synthesis, and solution behaviour of small polyamines as switchable water additives

    S. M. Mercer, T. Robert, D. V. Dixon, C. Chen, Z. Ghoshouni, J. R. Harjani, S. Jahangiri, G. H. Peslherbe and P. G. Jessop, Green Chem., 2012, 14, 832
    DOI: 10.1039/C2GC16240G

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