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Adsorption of copolymers and surfactants from micellar solutions

ORAL · Invited

Abstract

Surfactant molecules that adsorb strongly to liquid surfaces and interfaces often also self-assemble into micelles. The dynamics of adsorption of individual surfactant molecules from a solution with a concentration below the CMC to a surface or interface is simple, and well understood. The dynamics of adsorption from micellar solutions has been less heavily studied, either theoretically or experimentally, and is less well understood. I will discuss a model of adsorption from a micellar solution to a rapidly created, initially bare interface, and consider how this transport problem is affected by the temporary creation of a region near in which the surface in which the local concentration is temporarily suppressed well below the CMC. I will also discuss analysis of experimental measurements of the dynamic interfacial tension of aqueous solutions of a component of lung surfactant (Lyso-PC).

Publication: J.A. Mysona, A.V. McCormick, and D.C.M, J. Colloid and Interface Sci. 638, 855-871 (2023).<br>B. Huang, S.V Iasell, M. Rathi, J. Hassler, C. Ciutara, Z. He, D.C. Morse, J.Z. Zasadsinksi, J. Coll. and Interface Sci. 677, 557-568 (2024)

Presenters

  • David C Morse

    University of Minnesota

Authors

  • David C Morse

    University of Minnesota