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(Liquid+liquid) equilibria for (cholinium-based ionic liquids+polymers) aqueous two-phase systems
- Source :
-
Journal of Chemical Thermodynamics . May2013, Vol. 60, p1-8. 8p. - Publication Year :
- 2013
-
Abstract
- Abstract: Searching for environmentally friendly aqueous two-phase systems is imperative for the sustainable development of bioseparation technologies. In the present work, (liquid+liquid) equilibrium data have been determined experimentally for aqueous two-phase systems formed by the cholinium-based ionic liquids (cholinium glycollate, cholinium propionate, cholinium lactate, and choline chloride) and polymers {polypropylene glycol 400 (PPG400), polypropylene glycol 1000 (PPG1000), and poly(ethylene glycol)-block-poly(propylene glycol)-poly(ethylene glycol) (EO10PO90)}. The effects of anion type of the ionic liquids, the nature of the polymers and temperature of the systems are examined on the phase-forming capacity of the systems. Then the binodal results have been satisfactorily fitted to a three-parameter empirical equation. The tie-line data are well described by the Othmer–Tobias and Bancroft equations. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00219614
- Volume :
- 60
- Database :
- Academic Search Index
- Journal :
- Journal of Chemical Thermodynamics
- Publication Type :
- Academic Journal
- Accession number :
- 85915137
- Full Text :
- https://doi.org/10.1016/j.jct.2013.01.002