Polymer adsorption on heterogeneous surfaces
arXiv:cond-mat/9802193 · doi:10.1007/s100510050306
Abstract
The adsorption of a single ideal polymer chain on energetically heterogeneous and rough surfaces is investigated using a variational procedure introduced by Garel and Orland (Phys. Rev. B 55 (1997), 226). The mean polymer size is calculated perpendicular and parallel to the surface and is compared to the Gaussian conformation and to the results for polymers at flat and energetically homogeneous surfaces. The disorder-induced enhancement of adsorption is confirmed and is shown to be much more significant for a heterogeneous interaction strength than for spatial roughness. This difference also applies to the localization transition, where the polymer size becomes independent of the chain length. The localization criterion can be quantified, depending on an effective interaction strength and the length of the polymer chain.
accepted in EPJB (the Journal formerly known as Journal de Physique)
Cited by in corpus (6)
- Neutral and Charged Polymers at Interfaces
- Local dynamics and primitive path analysis for a model polymer melt near a surface
- Polymer adsorption onto random planar surfaces: Interplay of polymer and surface correlation
- Polymer adsorption on a fractal substrate: numerical study
- Polymers in disordered environments
- Mechanical characterization of stress softening in double network hydrogels