Flow of polymer chains in thin confined layers. A computer Monte Carlo study

The aim of the study was the investigation of the polymer molecules located between two parallel and impenetrable surfaces which were attractive for polymer segments. The positions chains were restricted to knots of a simple cubic lattice. The chains were at good solvent conditions – the excluded volume was the only interactions between the segments of the chain. The properties of the model chains were determined by means of Monte Carlo simulations with a sampling algorithm based on chain’s local changes of conformation. The differences and similarities in the structure for different adsorption regimes and the size of the slit were shown and discussed. The dependence of chain mobility expressed by mean-square displacement on the width of the slit and the temperature was studied.