title: A simple kinetic model of polymer adsorption and desorption.
abstract: A model of the desorption and adsorption of a polymer layer at a planar surface indicates a transition from exponential kinetics at high temperatures to nonexponential kinetics (stretched exponential with index one-half) at lower temperatures where these processes are diffusion-limited. Measurements of polystyrene desorption through polyisoprene overlayers show this predicted transition. Corroborative results are obtained for polystyrene desorption through polymethylmethacrylate overlayers. This identification of two distinct kinetic regimes suggests a unifying perspective from which to analyze polymer and biopolymer mobility at surfaces.
authors.forename: J F
authors.initials: JF
authors.lastname: Douglas
authors.forename: H E
authors.initials: HE
authors.lastname: Johnson
authors.forename: S
authors.initials: S
authors.lastname: Granick