Phase diagram for a diblock copolymer melt under cylindrical confinement

Macromolecules

Volumn 39, Issue 2, 2006, Pages 806-811

  Li, Weihua ^a   Wickham, Robert A ^a   Garbary, Robert A ^a  

^a ST FRANCIS XAVIER UNIVERSITY   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

CYLINDERS (CONTAINERS); NANOSTRUCTURED MATERIALS; PHASE DIAGRAMS; POROSITY;

REAL SPACE SELF-CONSISTENT; TWO DIMENSIONAL STRUCTURES;

BLOCK COPOLYMERS;

EID: 31644451510     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma052151y     Document Type: Article

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23. While the absolute free energies of the structures are sensitive to the discretization used, the differences between free energies are only slightly influenced by discretization. As a consequence, the phase boundaries are not significantly changed. In our study of intermediate structures, we find that the shift in the absolute free energies is smaller on going from a 256 × 256 lattice to a 512 × 512 lattice than it is on going from a 128 × 128 lattice to a 256 × 256 lattice.
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26. We caution the reader that we use the word "cylinders" only as a convenient term to describe these domains. Although these structures exist in a parameter region that overlaps with the region where hexagonally coordinated cylinders are in equilibrium in the bulk phase diagram, our two-dimensional study does not determine whether in three dimensions, under confinement, these domains are cylinders, spheres, helices, or some other three-dimensional morphology.
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