  We investigate numerically, using the bond-fluctuation model, the adsorption
of many random AB--copolymers with excluded volume interactions at the
interface between two solvents. We find two regimes, controlled by the total
number of polymers. In the first (dilute) regime, the copolymers near the
interface extend parallel to it, while in the second regime they extend
perpendicular to it. The density at the interface and the density in the bulk
depend differently on the total number of copolymers: In the first regime the
density at the interface increases more rapidly then in the bulk, whereas the
opposite is true in the second regime.
