| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
| 권호 | 30권 2호 |
| 발표분야 | 자기조립형 기능성재료 |
| 제목 | Morphological modulation of block copolymer nanostructure near topologically heterogeneous surface |
| 초록 | We investigate the formation of locally ordered nano-patterns of block copolymer melt near various topologically heterogeneous surfaces possessing 1-diemsional or 2-dimensional periodic embossment, particularly focusing on how those surface topologies affect the nano-patterns of neighboring block copolymer fluid. Using both cell dynamics simulation and self-consistent filed calculation, we construct phase maps as a function of the composition of block copolymer (f) and the surface interaction (h), and the parameters describing the surface roughness (periodicity and height of embossment, etc). We find many cases of surface-induced order-order transitions including hexagon-to-perforated lamellae (HPL). The simulated surface-induced modulations or transformations in block copolymer morphology are theoretically discussed and compared with experimental results. Fig.1 The PL morphology near the surface attracting majority block of cylinder-forming diblock copolymer |
| 저자 | 허 준, 조원호, 박문정, 차국헌 |
| 소속 | 서울대 |
| 키워드 | block copolymer; order-order transition |
