| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 가을 (10/08 ~ 10/09, 광주과학기술원 오룡관) |
| 권호 |
34권 2호 |
| 발표분야 |
방사광을 이용한 고분자 나노소재 연구 |
| 제목 |
Effect of film thickness on the phase behaviorsinPS-b-PI thin film |
| 초록 |
Diblock copolymers self-assemble into various micro-domain morphologies. Depending on the total number of segment (N), the fraction of each block (f) and interaction parameter (χ), diblock copolymers exhibits different stable morphology. The phase behaviors in thin film are additionally influenced by the interaction with substrate and by the film thickness due to the preferential wetting of one block. In this study, we investigated the effect of the film thickness on thermal phase behaviors in polystyrene-block-polyisoprene thin film in the thickness range of 140-2400 nm, which exhibits hexagonal perforated lamellar, double gyroid and hexagonal packed cylinder morphologies at different temperature. Base on the GISAXS, TEM results, a phase diagram was reconstructed as a function of thickness and temperature. The morphology of the interfacial layer of DG phase was characterized by transmission electron microtomography. |
| 저자 |
정주은1, 박해웅1, Hiroshi Jinnai2, 장태현1
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| 소속 |
1포항공과대, 2Kyoto Institute of Technology |
| 키워드 |
Block copolymer; thin film; phase behavior
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| E-Mail |
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