Abstract

In this study, we investigated the properties of star-branched polymers confined to a slit. The polymer models used were rather idealized: they consisted of identical united atoms (segments) whose positions were restricted to vertices of a simple cubic lattice. The polymers were put into a slit formed by a pair of parallel and impenetrable surfaces. The system was at good solvent conditions, and, thus, the chains interacted with the excluded volume only. The force field used consisted of a simple contact potential acting between polymer segments and confining surfaces. The properties of the model chains were determined by means of Monte Carlo simulations with a sampling algorithm based on local changes of chain's conformation. The influence of the temperature and the size of the slit on the dynamic behavior of chains was studied. It appeared that, at certain conditions, chain jumps between the confining surfaces were observed.

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