| 학회 |
한국고분자학회 |
| 학술대회 |
2008년 가을 (10/09 ~ 10/10, 일산킨텍스) |
| 권호 |
33권 2호 |
| 발표분야 |
고분자 구조 및 물성 |
| 제목 |
Hierarchical Assembly of Nanoparticle Superstructures fromBlock Copolymer-Nanoparticle Composites |
| 초록 |
Here, we synthesized model CdSe nanoparticles, functionalized with tetradecyl phosphonic acid (TDPA), so as to preferentially segregate into the polystyrene (PS) domains of polystyrene-block-poly(methylmethacrylate) (PS-b-PMMA). Nanocomposites, composed with ternary blends (PS-b-PMMA/PS/PMMA) and CdSe, could be directed to assemble into defect-free and registered periodic and non-regular structures on chemically patterned substrates. CdSe nanoparticle arrays, replicating the block copolymer patterns, were obtained by removing the polymer using oxygen plasma. The location and distribution of nanoparticles in the PS domains controls depending on the blend composition, molecular weights of homopolymers and the commensurability between the chemical surface pattern and the bulk lamellar period of the composite and the experimental results are compared to prediction of single chain mean field (SCMF) theory extended to model nanocomposites. |
| 저자 |
강희만, Franois A. Detcheverry, Andrew N. Mangham, Robert J. Hamers, Juan J. de Pablo, Paul F. Nealey
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| 소속 |
Univ. of Wisconsin - Madison |
| 키워드 |
Directed Assembly; Block Copolymer; Nanoparticle; Lithography; Thin Film
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| E-Mail |
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