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Triggered Self-Assembly of Simple Dynamic Covalent Surfactants

2009; American Chemical Society; Volume: 131; Issue: 32 Linguagem: Inglês

10.1021/ja902808q

1943-2984

Christophe B. Minkenberg, Louw J. Florusse, Rienk Eelkema, Ger J. M. Koper, Jan H. van Esch,

Advanced Polymer Synthesis and Characterization

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.