Abstract
The adsorption of ionic diblock copolymers on an uncharged surface is investigated. One block, the «anchor», consists of N A uncharged, adsorbing A segments, whereas the «buoy» block has N B segments which carry a fixed charge and are nonadsorbing. Upon adsorption these molecules form a layer that resembles a brush of B segments. In contrast with a usual brush, however, the molecules in the adsorbed layer are in equilibrium with those in solution. Consequently, the chain density of the brush is not fixed; its value is determined by the dynamic equilibrium between polymer adsorption and desorption
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