2024
DOI: 10.1021/acs.langmuir.4c01912
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Directed Self-Assembly by Sparsely Prepatterned Substrates with Self-Responsive Polymer Brushes

Qingliang Song,
Jing Zhou,
Qingshu Dong
et al.

Abstract: The guiding pattern in the chemoepitaxially directed self-assembly (DSA) of block copolymers is often fabricated by periodically functionalizing homogeneously random copolymer brushes tethered on a substrate. The prepatterned copolymer brushes constitute a soft penetrable surface, and their two components can in principle locally segregate in response to the overlying selfassembly process of block copolymers. To reveal how the self-responsive behavior of the copolymer brushes affects the directing effect, we d… Show more

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