Adsorption of star polymers: computer simulations

Adsorption of star polymers

The adsorption of star polymers on a flat solid surface is analyzed by means of scaling arguments based on the Daoud-Cotton blob model For the adsorption of a single star, consisting of f arms compnsing each N monomers, we distinguish three regimes determined by the

Computer simulation of three-arm star polymers

Polymeric liquids have unique dynamical properties that distinguish them from small molecule fluids . One of the most important examples is the strong dependence of the transport properties on the degree of polymerization N. For linear polymer chains (the most extensively studied architecture) one finds two different regimes. For chains shorter than a crossover chain length Nc the selfdiffusion...

Polymers processing enhanced by advanced computer simulations

Surface adsorption of comb polymers by Monte Carlo simulations

This paper reports off-lattice Monte Carlo simulations of highly-branched comb homopolymers weakly adsorbed on a flat, featureless surface showing only covolume and dispersion interactions with the adsorbate. A minimal coarse-grained model, described by hard spheres connected by harmonic springs, was employed. The interaction energy of the adsorbed combs and linear chains is first discussed as ...

Primitive chain network simulations for asymmetric star polymers.

For branched polymers, the curvilinear motion of the branch point along the backbone is a significant relaxation source but details of this motion have not been well understood. This study conducts multi-chain sliplink simulations to examine effects of the spatial fluctuation and curvilinear hopping of the branch point on the viscoelastic relaxation. The simulation is based on the primitive cha...