Desorption of polymers: role of the stagnant layer

摘要: The desorption of polymers is studied theoretically and with Monte Carlo simulations. Two regimes can be distinguished: in one regime the detachment polymer from surface slowest process, other it diffusion away surface. In both rate depends on thickness H stagnant layer, i.e. layer which movement dominated by diffusion. diffusion-limited scales as − 2, expected for diffusive processes. detachment-limited 1. importance due to fact that polymer, after has detached, will most likely readsorb soon after: probability does not readsorb, but crosses inversely proportional layer.