Nanoparticle-induced phase transitions in diblock-copolymer films

被引：229

作者：

Kim, BJ ^{[1
]}

Chiu, JJ ^{[1
]}

Yi, GR ^{[1
]}

Pine, DJ ^{[1
]}

Kramer, EJ ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Dept Mat, Dept Chem Engn, Santa Barbara, CA 93106 USA

来源：

ADVANCED MATERIALS | 2005年 / 17卷 / 21期

关键词：

D O I：

10.1002/adma.200500502

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Films of a symmetric A-B diblock copolymer and A-coated An nanoparticles cast from a selective solvent for A develop a lamellar surface layer. The surface layers have a low volume fraction of nanoparticles in the A lamellae atop a substrate layer of B cylinders/spheres in an A matrix containing a larger volume fraction of nanoparticles (see Figure). This arrangement thus induces an order-order transition between block-copolymer phases as their concentration is increased.

引用

页码：2618 / +

页数：6

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