Triggered self-assembly of simple dynamic covalent surfactants.
A prototype surfactant system was developed with the unique feature that it can be switched between an aggregated, amphiphilic state and a nonaggregated, nonamphiphilic state using external stimuli. This switchable surfactant system uses the reversible formation of a dynamic covalent bond for pH- and temperature-triggered on/off self-assembly of micellar aggregates by reversible displacement of the equilibrium between nonamphiphilic building blocks and their amphiphilic counterparts. The potential for application in controlled-release systems is shown by reversible uptake and release of an organic dye in aqueous media.
Minkenberg
Christophe B
CB
Delft University of Technology, DelftChemTech, Julianalaan 136, 2628 BL Delft, The Netherlands.
Florusse
Louw
L
Eelkema
Rienk
R
Koper
Ger J M
GJ
van Esch
Jan H
JH
D004396:Coloring Agents / Q000008:administration & dosage; D003692:Delayed-Action Preparations / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D008823:Micelles; D008958:Models, Molecular; D015394:Molecular Structure; D013501:Surface-Active Agents / Q000737:chemistry*; D014867:Water / Q000737:chemistry
D004396:Coloring Agents; D003692:Delayed-Action Preparations; D008823:Micelles; D013501:Surface-Active Agents; D014867:Water