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A continuum-space mean-field model for brushes made of starlike polymers in Θ-solvent is developed. The model accounts for the segregation of molecules into two vertical layers and predicts the population fractions of these layers. It reproduces recently reported deviations of the brush heights from scaling theory at moderate and high grafting densities. In the regime of very low monomer densities,...
In recent publications, a couple of theoretical models, ranging from simple scaling approaches and box-like mean-field models to self-consistent field techniques, have been proposed to describe the structure of brushes that are composed of dendrimers. In this work, we carry out molecular dynamics simulations in various density regimes, and compare the resulting data with predictions of the latest...
The properties of starlike polymer brushes in Θ-solvent are investigated using molecular dynamics simulations, scaling- and mean-field theory. Deviations of layer thickness and monomer density from predictions of scaling theory are analyzed and explained. Contrary to common believes, we conclude that the Alexander-deGennes scaling theory is not valid for starlike polymer brushes in Θ-solvent, unless...
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