| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
38권 2호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
The Structural Change Due to the Cross-Coupling of Buckling Direction and Alignment of Block Copolymer Domains in Bilayer Buckling |
| 초록 |
Buckling of thin rigid films on elastomeric substrates such as polydimethylsiloxane (PDMS) is a well-known phenomenon in buckling instability originating from the moduli mismatch between a substrate and a thin film placed at the top. Recently, many studies on the buckling structures have been reported but few studies utilized block copolymer (BCP) thin films as the top layer. Here, we present the buckling of oriented BCP thin films placed on top of PDMS substrates, resulting in hierarchical structures combining nanostructured BCP domains along with microstructured buckling. We observed the structural change of the films depending on the alignment of BCP domains with respect to the buckled direction of a substrate, which could give us insights on the buckling of mechanically heterogeneous films. We believe that this work would be easily extended to a new hierarchical patterning technique, utilizing both BCP thin film lithography and microscale patterning induced by buckling. |
| 저자 |
권도경1, 서효선2, 차국헌3
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| 소속 |
1National Creative Research Initiative Center for Intelligent Hybrids, 2World Class Univ. Program of Chemical Convergence for Energy & Environment, 3School of Chemical & Biological Engineering |
| 키워드 |
Block Copolymer; Buckling; Hierarchical Structure
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| E-Mail |
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