Morphologies of ABC triblock copolymer thin films

被引:66
作者
Chen, HY [1 ]
Fredrickson, GH
机构
[1] Univ Calif Santa Barbara, Mat Res Lab, Santa Barbara, CA 93106 USA
[2] Univ Calif Santa Barbara, Dept Chem Engn, Santa Barbara, CA 93106 USA
[3] Univ Calif Santa Barbara, Mitsubishi Chem Ctr Adv Mat, Santa Barbara, CA 93106 USA
关键词
D O I
10.1063/1.1426414
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 apply self-consistent field theory to confined films of symmetric ABC triblock copolymer melts, where the A and C blocks are equal in size and A-B, B-C, and A-C interactions are identical. We focus on the regime where, in bulk systems, B forms the majority domain and the minority A and C domains form cylinders or spheres. We show that the morphologies of confined films may have different symmetries from bulk melts, and the shape and orientation of the minority A and C domains can be manipulated by tuning the wall potentials and film thickness. Our calculations suggest a route for experimentally controlling complex nanometer-scale surface patterning. (C) 2002 American Institute of Physics.
引用
收藏
页码:1137 / 1146
页数:10
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