This work was supported by the MRSEC Program of the National Science Foundation under award number DMR00-80034. We appreciate Dr. Huiman Kang and Dr. Kirill Katsov for valuable discussion.
Nanoparticle-Induced Phase Transitions in Diblock-Copolymer Films†
Article first published online: 15 SEP 2005
Copyright © 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Volume 17, Issue 21, pages 2618–2622, November, 2005
How to Cite
Kim, B. J., Chiu, J. J., Yi, G.-R., Pine, D. J. and Kramer, E. J. (2005), Nanoparticle-Induced Phase Transitions in Diblock-Copolymer Films. Adv. Mater., 17: 2618–2622. doi: 10.1002/adma.200500502
- Issue published online: 25 OCT 2005
- Article first published online: 15 SEP 2005
- Manuscript Accepted: 13 JUN 2005
- Manuscript Received: 10 MAR 2005
- Block copolymers;
- Nanoparticles, gold;
- Polymer composites;
- Surface modification
Films of a symmetric A–B diblock copolymer and A-coated Au 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.