Dynamic Properties of Linear and Cyclic Chains in Two Dimensions. Computer Simulation Studies

Abstract

Comparison studies of athermal cyclic and linear polymer chains systems on the two-dimensional triangular lattice are presented. We studied various polymers concentrations with respect to an explicitly considered solvent. The simulation model used is the dynamic lattice liquid model (DLL). This model can work with the highest possible density where all lattice sites are occupied and it allows to take into account coincidences of elementary molecular motion attempts resulting in local cooperative structural transformations. Both static and dynamic properties of the model systems are characterized. We focus on differences between the dynamic behavior of rings and linear chains in solution and how the structure of these objects influence the dynamics of the inert solvent. The simulation results reflect molecular packing and other properties of monomolecular polymer layers, which can be relevant for these, obtained in some thin film formation techniques.