Kinetic Model of Structural Relaxation in Diblock Copolymer Film

Filatov, D.A.; Govorun, E.N.; Kudryavtsev, Y.V.

Авторы: Filatov D.A., Govorun E.N., Kudryavtsev Y.V.
Журнал: Polymer Science, Series A
Том: 62
Номер: 2
Год издания: 2020
Издательство: Pleiades Publishing, Ltd
Местоположение издательства: Road Town, United Kingdom
Первая страница: 140
Последняя страница: 148
Оригинальные версии: Кинетическая модель структурной релаксации в пленке диблок-сополимера
DOI: 10.1134/S0965545X20010046
Аннотация: A relaxation model for the structure ripening under annealing of a microphase-separated polymer film has been developed. Equations have been derived that describe the appearance and annihilation of defects in the kinetically controlled mode based on the experimental data on the hexagonal structure evolution. Using that equations, the time dependences of the defect-free area size have been analyzed. It has been found that the predominance of the defect annihilation upon their triple contact leads to the power-law dependence of the orientation correlation length ξ_or ~ t^1/4, which is observed experimentally at high annealing temperatures. A more detailed analysis of the evolution of two types of defects (dislocations and disclinations)shows that this dependence can also be realized in a model that takes into account the annihilation of disclination pairs and quadruples providing that dislocations influence this process. The results demonstrate that macrokinetic models can describe structural rearrangements in block copolymer films.
Добавил в систему: Говорун Елена Николаевна

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№	Имя	Описание	Имя файла	Размер	Добавлен
1.	Полный текст		Filatov_PolSciA_2020.pdf	1019,3 КБ	20 января 2021 [VasilevskayaVV]
2.	Экспертное Заключение		Ekspertnoe_zakluchenie.pdf	405,6 КБ	25 декабря 2020 [DmitryFilatov]

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Kinetic Model of Structural Relaxation in Diblock Copolymer Filmстатья

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