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Pluronic Micelle Shuttle between Water and an Ionic Liquid.
- Source :
-
Langmuir . Jun2010, Vol. 26 Issue 11, p8887-8892. 6p. - Publication Year :
- 2010
-
Abstract
- We demonstrate an effective micelle shuttle between water and a hydrophobic ionic liquid and its application in transportation in the biphasic system, using a commercially available and inexpensive Pluronic block copolymer. The poly(ethylene oxide-b-propylene oxide-b-ethylene oxide) (P123) block copolymer self-assembles into micelles in both water and the ionic liquid, 1-butyl-3-methylimidazolium hexafluorophosphate, as characterized by dynamic light scattering. The poly(ethylene oxide) blocks provide the well-solvated corona, whereas the poly(propylene oxide) blocks form the solvophobic core. The micelles can spontaneously transfer between the two phases upon a simple temperature stimulus; the transfer is reversible and repeatable, and 1H NMR analysis indicates quantitative transfer. The micelle nanocarriers are used to transport various cargoes in the biphasic system: fully reversible transport of hydrophobic small organic dyes into and out of water and facile extraction of an ionic liquid-phobic polymer from the ionic liquid. This simple round-trip delivery system may be used in delivery, separations, and extraction in synthesis and biphasic catalysis involving ionic liquids. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 07437463
- Volume :
- 26
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- Langmuir
- Publication Type :
- Academic Journal
- Accession number :
- 51141047
- Full Text :
- https://doi.org/10.1021/la9046462