Guiding Polymers to Perfection: Macroscopic Alignment of Nanoscale Domains
CHICAGO UNIV IL DEPT OF CHEMISTRY
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Nanoscale diblock copolymer domains are aligned via top-downbottom-up hierarchical assembly. Grating substrates template cylinder alignment with demonstrated 50001 aspect ratio for 100 micrometers domains extendable to arbitrary length scales. Depending on trough depth and amount of deposited polymer, aligned domains are 1 confined to the channels or 2 expanded across the grating frequently with 3 a complete absence of defects. This methodology can be exploited in hybrid hardsoft matter systems for electronics, catalysis, and sensors.
- Polymer Chemistry