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Self-consistent field study of the alignment by an electric field of a cylindrical phase of block copolymer.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lin, Chin-Yet Schick, M. |
| Copyright Year | 2006 |
| Abstract | Self-consistent field theory is applied to a film of cylindrical-forming block copolymer subject to a surface field which tends to align the cylinders parallel to electrical plates, and to an external electric field tending to align them perpendicular to the plates. The Maxwell equations and self-consistent field equations are solved exactly, numerically, in real space. By comparing the free energies of different configurations, we show that for weak surface fields, the phase of cylinders parallel to the plates makes a direct transition to a phase in which the cylinders are aligned with the field throughout the sample. For stronger surface fields, there is an intermediate phase in which cylinders in the interior of the film, aligned with the field, terminate near the plates. For surface fields which favor the minority block, there is a boundary layer of hexagonal symmetry at the plates in which the monomers favored by the surface field occupy a larger area than they would if the cylinders extended to the surface. |
| Starting Page | 34902 |
| Ending Page | 34902 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://faculty.washington.edu/schick/Abstracts/cylinders.pdf |
| PubMed reference number | 16863380v1 |
| Volume Number | 125 |
| Issue Number | 3 |
| Journal | The Journal of chemical physics |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Alignment Copolymer Electric Countershock Electroconvulsive Therapy Energy, Physics Large monomer |
| Content Type | Text |
| Resource Type | Article |
