Frustrated phases under three-dimensional confinement simulated by a set of coupled Cahn-Hilliard equations

被引：42

作者：

Avalos, Edgar ^{[1
]}

Higuchi, Takeshi ^{[2
]}

Teramoto, Takashi ^{[3
]}

Yabu, Hiroshi ^{[1
]}

Nishiura, Yasumasa ^{[1
]}

机构：

[1] Tohoku Univ, Adv Inst Mat Res, WPI Res Ctr, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan

[2] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Aoba Ku, 2-1-1 Katahira, Sendai, Miyagi 9808577, Japan

[3] Asahikawa Med Univ, Dept Math, 2-1-1-1 Midorigaoka Higashi, Asahikawa, Hokkaido 0788510, Japan

来源：

SOFT MATTER | 2016年 / 12卷 / 27期

关键词：

ABA TRIBLOCK COPOLYMERS; DIBLOCK COPOLYMER; BLOCK-COPOLYMERS; MICROPHASE-SEPARATION; MORPHOLOGY; NANOPARTICLES; MICROSTRUCTURES; TRANSITION; DYNAMICS; DIAGRAM;

D O I：

10.1039/c6sm00429f

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We numerically study a set of coupled Cahn-Hilliard equations as a means to find morphologies of diblock copolymers in three-dimensional spherical confinement. This approach allows us to find a variety of energy minimizers including rings, tennis balls, Janus balls and multipods among several others. Phase diagrams of confined morphologies are presented. We modify the size of the interface between microphases to control the number of holes in multipod morphologies. Comparison to experimental observation by transmission electron microtomography of multipods in polystyrene-polyisoprene diblock copolymers is also presented.

引用

页码：5905 / 5914

页数：10

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