| 학회 |
한국고분자학회 |
| 학술대회 |
2010년 가을 (10/07 ~ 10/08, 대구 EXCO) |
| 권호 |
35권 2호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Micropatterns of Anisotropic Droplets of Nanostructured PS-b-PEO Copolymer by Solvent Annealing on SAMs Patterned Surface |
| 초록 |
We present a method to fabricate micropatterns of non-spherical droplets of self assembled block copolymer with hierarchically ordered nanostructures by controlling solvent-assisted wetting of the droplets. This method is based on transfer-printing the micropatterned dewetted droplets periodically dewetted on a topographic poly(dimethylsiloxane) pre-pattern onto chemically patterned Au surface with self-assembled monolayers, followed by wetting triggered by solvent annealing. Solvent vapor provides sufficient mobility of block copolymer molecules in convex-shaped micropatterns and the periodic wet-philic and wet-phobic SAMs surface pattern controls the spreading of the transferred droplets during solvent annealing. Solvent annealing of block copolymer droplets combined with chemically patterned surface results non-spherical micropatterns and the shape of a droplet strongly depends on the transferred position relative to the line patterned SAMs deposited on Au substrate. |
| 저자 |
송지영, 김태희, 박철민
|
| 소속 |
연세대 |
| 키워드 |
block copolymer; solvent annealing; dewetting
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| E-Mail |
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