Reversibly switchable surfactants and methods of use thereof

Details Reversibly switchable surfactants and methods of use thereof Reversibly switchable surfactants and methods of use thereof

C - Chemistry, Metallurgy

07

F

C07F 7/10 (2006.01) B01D 17/04 (2006.01) B01F 17/54 (2006.01) C09K 8/28 (2006.01)

Patent

CA 2527144

A surfactant that reversibly converts to a non-surfactant upon contact with a gas containing substantially no carbon dioxide is described. The non-surfactant converts to the surfactant in the presence of carbon dioxide and water. The described compounds have at least one hydrophobic moiety, and either an amidine or guanidine moiety that converts to an amidinium or guanidinium bicarbonate salt, respectively, in the presence of water and carbon dioxide. Some embodiments require increased pressure to convert, others convert at 1 atmosphere.

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