Continuum random sequential adsorption of polymer on a flat and homogeneous surface

TL;DR

This study systematically investigates the random sequential adsorption of polymers modeled as chains of spheres on flat surfaces, analyzing how polymer size, shape, and degrees of freedom affect coverage and kinetics.

Contribution

It introduces a detailed analysis of RSA for polymers with controlled anisotropy and degrees of freedom, comparing different configurations and theoretical models.

Findings

Coverage ratio depends on polymer size and shape.

Adsorption kinetics vary with degrees of freedom.

Results align with and extend existing theoretical predictions.

Abstract

Random sequential adsorption (RSA) of polymer, modeled as a chain of identical spheres, is systematically studied. In order to control precisely anisotropy and number of degrees of freedom, two different kinds of polymers are used. In the first one, monomers are placed along a straight line, whereas in the second, relative orientations of particles are random. Such polymers fill a flat homogeneous surface randomly. The paper focuses on maximal random coverage ratio and adsorption kinetics dependence on polymer size, shape anisotropy, and numbers of degrees of freedom. Obtained results were discussed and compared with other numerical experiments and theoretical predictions.