Formation and stability of double gyroid in microphase-separated diblock copolymers
Formation and stability of double gyroid in microphase-separated diblock copolymers
复制标题
微相分离二嵌段共聚物中双螺旋体的形成和稳定性
DOI：
10.1088/0953-8984/15/26/101
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
T. Ohta
中科院分区：
文献类型：
--
作者：
M. Nonomura;Kohtaro Yamada;T. Ohta
本文用振型展开法研究了嵌段共聚物的微相分离形态和动力学。在弱分凝极限下，我们采用双波数近似研究了双螺旋结构的形成和稳定性，并导出了微相分离态的相图。我们研究了由于温度变化的结构转变的动力学，通过求解耦合的振幅方程组的基本模式。我们专注于我们的注意力从一个双螺旋状的层状结构和六角形结构的形态演变。
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.