Confined self-assembly of cylinder-forming diblock copolymers: effects of confining geometries

被引：81
|
作者：
Yu, Bin [1 ,2 ]
Li, Baohui [1 ,2 ]
Jin, Qinghua [1 ,2 ]
Ding, Datong [1 ,2 ]
Shi, An-Chang [3 ]
机构：
[1] Nankai Univ, MOE Key Lab Weak Light Nonlinear Photon, Tianjin 300071, Peoples R China
[2] Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China
[3] McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada
来源：
SOFT MATTER | 2011年 / 7卷 / 21期
基金：
中国国家自然科学基金; 加拿大自然科学与工程研究理事会;
关键词：
MONTE-CARLO SIMULATIONS; BLOCK-COPOLYMERS; THIN-FILMS; MICROPHASE SEPARATION; INDUCED MORPHOLOGIES; PHASE-DIAGRAM; GROUND-STATE; NANOFIBERS; PARTICLES; ENERGY;
D O I：
10.1039/c1sm05947e
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：
The effects of confining geometries on the self-assembly of cylinder-forming asymmetric diblock copolymers are studied using a simulated annealing technique. Morphological transitions of block copolymers confined inside two parallel flat walls, cylindrical channels, as well as spherical and ellipsoidal cavities are systematically investigated. Depending on the copolymer composition, confining geometry and degree of structural frustration, a very rich array of confinement-induced morphologies is predicted by the simulations. The results reveal that the dimensionality of the confinement can affect the structure, symmetry and degeneracy of the self-assembled structures. In particular, the effect of spherical confinement is much stronger than that of thin film or cylindrical confinement.
引用
收藏
页码：10227 / 10240
页数：14
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