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Micropatterns of non-circular droplets of nanostructured Ps-B-Peo copolymer by solvent-assisted wetting on a chemically periodic surface

Title
Micropatterns of non-circular droplets of nanostructured Ps-B-Peo copolymer by solvent-assisted wetting on a chemically periodic surface
Authors
Kim T.H.Park Y.J.Song G.Kim D.H.Huh J.Karthaus O.Park C.
Ewha Authors
김동하
SCOPUS Author ID
김동하scopus
Issue Date
2012
Journal Title
Macromolecular Chemistry and Physics
ISSN
1022-1352JCR Link
Citation
vol. 213, no. 4, pp. 431 - 438
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
A method to fabricate micropatterns of non-circular droplets of a self-assembled block copolymer by solvent-assisted wetting on chemically periodic surface is presented. The block copolymer is dewetted on a topographic pre-pattern to form an array of microdroplets with a sphere-capped shape and circular contact line. The droplets are then transferred onto a chemically periodic Au line pattern microcontact-printed with two types of self-assembled monolayers (SAMs). Solvent vapor application provides sufficient mobility to the block copolymer molecules to induce spreading of the transferred droplets, resulting in two types of non-circular microdroplet growth. The growth behavior depends on the size of initial droplets relative to periodic line width and on the initial registries of as-transferred droplets. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
DOI
10.1002/macp.201100498
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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