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TitleTunable nanopatterns via the constrained dewetting of polymer brushes
Publication TypeJournal Article
Year of Publication2013
AuthorsLee, T., Hendy S.C., and Neto C.
Pagination6326 - 6335
Date Published2013
ISSN00249297 (ISSN)
KeywordsCoarse-grained molecular dynamics simulations, De-wetting, Dendrimers, Grafted polymers, Grafting (chemical), Grafting densities, molecular dynamics, Morphology and dynamics, Nano pattern, Polymer brushes, Solvents
AbstractCoarse-grained molecular dynamics simulations were used to investigate the morphology and dynamics of nanopatterns formed by grafted polymer brushes on a nonadsorbing substrate as a result of constrained dewetting. As a good solvent is made to gradually evaporate, polymer brushes with low to moderate grafting density collapse into discrete nanosized aggregates, with different types of nanopatterns possible, including pancake micelles and holey layers. The type of pattern, the size and number of features, and their dynamics depend on the grafting density of the polymer brush and amount of good solvent adsorbed. The final pattern morphology depends primarily on the total amount of material adsorbed to the surface, including both polymer and solvent. This result suggests the possibility for the use of polymer brushes as surfaces with reversibly tunable nanopatterns. © 2013 American Chemical Society.

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