Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2011-11-29
Physics
Condensed Matter
Soft Condensed Matter
5 pages, 5 figures, accepted for publication in the Journal of Chemical Physics
Scientific paper
We use computer simulations to investigate the stability of a two-component polymer brush de-mixing on a curved template into phases of different morphological properties. It has been previously shown via molecular dynamics simulations that immiscible chains having different length and anchored to a cylindrical template will phase separate into striped phases of different widths oriented perpendicularly to the cylindrical axis. We calculate free energy differences for a variety of stripe widths, and extract simple relationships between the sizes of the two polymers, N_1 and N_2, and the free energy dependence on the stripe width. We explain these relationships using simple physical arguments based upon previous theoretical work on the free energy of polymer brushes.
Bozorgui Behnaz
Cacciuto Angelo
Klymko Katherine
Miller William L.
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