Redox, Ionic Strength, and pH Sensitive Supramolecular Polymer Assemblies.
Supramolecular complex of a cationic surfactant and oppositely charged disulfide containing polyelectrolyte was found to form micelle type aggregates at concentration much lower than the critical aggregate concentration (CAC) of the surfactant itself. We show that this difference can be utilized to generate stimulus-sensitive disassembly of these structures. This can be achieved either by converting the polyelectrolyte counterions to monovalent counterions in response to a stimulus or by simply weakening the interaction between the polymer and the surfactant in the presence of a stimulus. We have utilized three different stimuli to demonstrate these possibilities.
Ghosh
Suhrit
S
Department of Chemistry, University of Massachusetts, Amherst, Massachusetts 01003.
Yesilyurt
Volkan
V
Savariar
Elamprakash N
EN
Irvin
Katharine
K
Thayumanavan
S
S