Enhancement in the orientation of the microdomain in block copolymer thin films upon the addition of homopolymer

被引：127
作者：
Jeong, U
Ryu, DY
Kho, DH
Kim, JK [1 ]
Goldbach, JT
Kim, DH
Russell, TP
机构：
[1] Pohang Univ Sci & Technol, Dept Chem Engn, Kyungbuk 790784, South Korea
[2] Pohang Univ Sci & Technol, Polymer Res Inst, Kyungbuk 790784, South Korea
[3] Univ Massachusetts, Dept Polymer Sci & Engn, Natl Ctr Polymer Res, Amherst, MA 01003 USA
来源：
ADVANCED MATERIALS | 2004年 / 16卷 / 06期
关键词：
D O I：
10.1002/adma.200306113
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Cylindrical microdomains in thin films of mixtures of polystyrene-block-poly-(methyl methacrylate) and poly(methyl methacrylate) (PMMA) homopolymer are oriented normal to the film surface (see Figure). Confining the PMMA homopolymer to the microdomains increases the persistence of microdomain orientation over large distances; thus, aspect ratios up to similar to10 are achievable without the use of an external field.
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页码：533 / +
页数：5
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