ADSORPTION OF POLYMERS ON A FLUCTUATING SURFACE

We study the adsorption of polymer chains on a fluctuating surface. Ph ysical examples are provided by polymer adsorption at the rough interf ace between two non-miscible liquids, or on a membrane. In a mean-fiel d approach, we find that the self-avoiding chains undergo an adsorptio n transition, accompanied by a stiffening of the fluctuating surface. In particular, adsorption of polymers on a membrane induces a surface tension and leads to a strong suppression of roughness.