Nanoparticle-induced phase transitions in diblock-copolymer films

被引：227
|
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
收藏
页码：2618 / +
页数：6
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