Bulletin of the American Physical Society
APS March Meeting 2011
Volume 56, Number 1
Monday–Friday, March 21–25, 2011; Dallas, Texas
Abstract: C1.00006 : Controlled Orientation of Block Copolymer Microdomains on Modified Solid Surfaces
Author:
The interfacial interactions between block copolymers (BCP) and a substrate
are important for the self-assembly of BCPs in thin films, especially in
terms of orientation of BCP microdomains. A simple, rapid, and robust
technique for controlling the alignment of BCP microdomains on modified
surfaces is described. End-functionalized poly(styrene-b-ethylene oxide)s
(PS-b-PEOs) with different block ratios were end-grafted onto Si substrates
creating BCP brushes. Thin films of cylindrical forming PS-b-PEO were
prepared on the surface of anchored BCP brushes and thermally annealed. When
the fraction of styrene, f, of the anchored BCP was 1, no features were
observed in thin film of a PS-b-PEO placed on the surface of the anchored
brush due to preferential interaction of the PS block with the brush. When f
was varied from 0.3 to 0.7, hexagonally packed cylindrical microdomains
oriented normal to the substrate were formed having long range lateral
ordering.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.MAR.C1.6
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2021 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
1 Research Road, Ridge, NY 11961-2701
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700