| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 봄 (04/09 ~ 04/10, 대전컨벤션센터) |
| 권호 |
34권 1호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Solvent annealing of Micropatterned PS-b-PEO copolymer films |
| 초록 |
The treatment of block copolymer thin film with its solvent vapor has been known as an effective way to control both orientation of microdomains and their registration into an ordered periodic structure. We have recently demonstrated hierarchically ordered microdomains in a thin poly(styrene-b-ethylene oxide)(PS-b-PEO) film combined with microcontact printing. The solvent annealing made well ordered spherical PEO microdomains in large area by the confined dewetting of thin films which had been micropatterned on chemically modified surface during solvent annealing. In this presentation, we intentionally prepare a micropatterned dewet film of PS-b-PEO by spincoating on a topographic PDMS pre-pattern. Convex lens shaped spherical caps of PS-b-PEO individually located on each PDMS mesa were transferred to a Si substrate by a conventional transfer printing technique. We investigate the effect of solvent on not only film wettability but also formation of hierarchical nanostructures. |
| 저자 |
김태희, 히마드리, 박철민
|
| 소속 |
연세대 |
| 키워드 |
block copolymer; dewetting; solvent annealing
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| E-Mail |
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