6533b82bfe1ef96bd128defc

RESEARCH PRODUCT

How does the pattern of grafting points influence the structure of one-component and mixed polymer brushes?

Kurt BinderL. WenningMarcus Müller

subject

chemistry.chemical_classificationQuantitative Biology::BiomoleculesStructure formationMaterials scienceMorphology (linguistics)Monte Carlo methodGeneral Physics and AstronomyBrushNanotechnologyPolymerPolymer brushGraftinglaw.inventionCondensed Matter::Soft Condensed MatterComputer Science::GraphicschemistrylawComposite materialRandomness

description

Using Monte Carlo simulations of a coarse-grained bead-spring model we study the lateral structure formation of one-component polymer brushes in a bad solvent and of a mixed polymer brush upon increasing the incompatibility of the two species. We compare the morphology of the brush with a regular distribution of grafting points and with a random arrangement. Density or composition fluctuations of the grafting points enhance the formation of irregular structures but randomness prevents the formation of long-range order. Even small fluctuations of the grafting points are sufficient to pin the lateral structures of the brush.

https://doi.org/10.1209/epl/i2005-10121-4