Interfaces in diblocks: A study of miktoarm star copolymers

被引：138

作者：

Grason, GM ^{[1
]}

Kamien, RD ^{[1
]}

机构：

[1] Univ Penn, Dept Astron & Astrophys, Philadelphia, PA 19104 USA

来源：

MACROMOLECULES | 2004年 / 37卷 / 19期

关键词：

D O I：

10.1021/ma049255d

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We study AB(n) miktoarm star block copolymers in the strong segregation limit, focusing on the role that the AB interface plays in determining the phase behavior. We develop an extension of the kinked-path approach which allows us to explore the energetic dependence on interfacial shape. We consider a one-parameter family of interfaces to study the columnar to lamellar transition in asymmetric stars. We compare with recent experimental results. We discuss the stability of the A15 lattice of spherelike micelles in the context of interfacial energy minimization. We corroborate our theory by implementing a numerically exact self-consistent-field theory to probe the phase diagram and the shape of the AB interface.

引用

页码：7371 / 7380

页数：10

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