The transition from highly to fully stretched polymer brushes in good solvent

Details The transition from highly to fully stretched polymer brushes in good solvent The transition from highly to fully stretched polymer brushes in good solvent

2007-09-21

arxiv.org/abs/0709.3409v1

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

10.1103/PhysRevLett.100.016104

The stretching of brushes of long polymers grafted to a planar surface is investigated byMonte Carlo simulations in the limit of very high grafting densities, as achieved in recent experiments. The monomer density profiles are shown to deviate considerably from the parabolic limiting form predicted by self-consistent field theory. A rapid transition is observed from parabolic to fully stretched polymers, characterized by a dramatic change in the end-monomer height distribution and by a clear cross-over in the slope of the brush height versus scaled grafting density.

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