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Effect of the Supporting Pattern on the Orientation of Hexagonal Morphology in Thin Films of Diblock Copolymersстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Kriksin Yu A., Khalatur P.G., Khokhlov A.R.
- Журнал: Polymer Science, Series A
- Том: 52
- Номер: 6
- Год издания: 2010
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 645
- Последняя страница: 654
- DOI: 10.1134/S0965545X10060118
- Аннотация: The model of a thin film sandwiched between two parallel planes the gap between which is filled with the melt of diblock copolymers is revisited. One of the planes (a supporting plane) has a pattern, whereas the other plane (an upper) is uniform. The proposed model is based on mean self-consistent field concepts. The parameters of diblock copolymers are selected so that the melt of diblock copolymers yields a hexagonal morphology in its volume. The upper boundary of the film and support avoid contact with the minor component of the diblock copolymer; as a result, in the film, a hexagonal morphology parallel to the support is formed. When hexagonal and rectangular patterns with preferential interaction with the minor component (the period of patterns coincides with the period of hexagonal symmetry in the volume), the hexagonal morphology changes its orientation from parallel to perpendicular relative to the support. The hexagonal morphology changes its orientation at sufficiently strong interaction between the pattern and minor component. Structural factor is calculated, and characteristic features in the location of peaks for perpendicular and parallel phases of hexagonal morphology are found. The development of additional peaks in the structural factor comes from deformations induced by the interaction between components of the melt of diblock copolymers with the upper boundary, support, and pattern.
- Добавил в систему: Хохлов Алексей Ремович