Fluorinated surfactants find niche applications because of their high chemical and thermal stability, their incompatibility with both water and hydrocarbons, and their unique ability to render surfaces non-stick. However, several widely used fluorinated surfactants have been found extremely resistant to degradation, accumulate in the environment, and have long half-lives in humans, consequently causing great concern. In the context of sequestering fluorinated surfactants from aqueous media, we research solution properties of fluorinated surfactants, with a focus on how such surfactants interact with (bind to) other molecules or particles/surfaces. We report here on ammonium perfluorooctanoate (APFO) micelle formation and structure in aqueous solutions and in the presence of various additives, probed with complementary experimental techniques (conductivity, surface tension, small-angle neutron scattering) and atomistic simulations. The results inform the fate and transport of per- & poly-fluoroalkyl substances (PFAS) in the environment.

Perfluorinated surfactant micelle formation and structure in aqueous media

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.