Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 17, 2017
Previous Article Next Article

Designing the thermal behaviour of aqueous biphasic systems composed of ammonium-based zwitterions

Author affiliations

Abstract

The ability of water-soluble ammonium-based zwitterions (ZIs) to form aqueous biphasic systems (ABS) in the presence of aqueous solutions of salts is disclosed here. These systems are thermoreversible at temperatures close to room temperature and further allow the design of their thermal behavior, from an upper critical solution temperature (UCST) to a lower critical solution temperature (LCST), by increasing the ZI alkyl chain length. The investigated thermoreversible ABS are more versatile than typical liquid–liquid systems, and can be applied in a wide range of temperatures and compositions envisaging a target separation process. An example is given regarding their ability to selectively separate mixtures of aromatic and aliphatic amino acids in a single-step.

Graphical abstract: Designing the thermal behaviour of aqueous biphasic systems composed of ammonium-based zwitterions

Back to tab navigation

Supplementary files

Article information


Submitted
25 Jul 2017
Accepted
01 Aug 2017
First published
01 Aug 2017

Green Chem., 2017,19, 4012-4016
Article type
Communication

Designing the thermal behaviour of aqueous biphasic systems composed of ammonium-based zwitterions

A. M. Ferreira, H. Passos, A. Okafuji, M. G. Freire, J. A. P. Coutinho and H. Ohno, Green Chem., 2017, 19, 4012
DOI: 10.1039/C7GC02262J

Social activity

Search articles by author

Spotlight

Advertisements