Formation and stability of double gyroid in microphase-separated diblock copolymers
Authors: Nonomura M.1; Yamada K.; Ohta T.
Source: Journal of Physics: Condensed Matter, Volume 15, Number 26, 2003 , pp. L423-L430(1)
Publisher: Institute of Physics Publishing
Abstract:
We investigate the morphology and kinetics of microphase separation of diblock copolymers by means of a mode expansion method. In a weak segregation limit, we employ two-wavenumber approximation to study the formation and stability of a double gyroid structure and derive the phase diagram of the microphase separated states. We have studied the kinetics of structural transitions due to temperature change by solving the coupled set of amplitude equations for the fundamental modes. We focus our attention on the morphological evolution from a double gyroid to a lamellar structure and to a hexagonal structure.
Language: English
Document Type: Miscellaneous
Affiliations: 1: Author to whom any correspondence should be addressed.

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