Polymer adsorption refers to the process by which polymer molecules adhere to a solid surface or interface, often involving a liquid, gas, or another solid medium. This phenomenon can occur in various contexts, including biological systems, materials science, and industrial applications.
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Polymer adsorption binds a polymer near an attractive interface through contacts of some of its monomers. The binding energy competes with the loss of conformational entropy. A chain need not lie flat: noncontacting loops and tails can extend into the solvent. In a weak-adsorption blob model, the layer thickness exceeds the Kuhn length and local chain statistics remain approximately those of the free chain below that thickness.