| 학회 | 한국화학공학회 |
| 학술대회 | 2011년 가을 (10/26 ~ 10/28, 송도컨벤시아) |
| 권호 | 17권 2호, p.1134 |
| 발표분야 | 고분자 |
| 제목 | Hemi-spherically Confined Microphase Separation Structures of Block Copolymers |
| 초록 | The arrangement of the microdomains in block copolymers(BCPs) changes significantly from that in bulk, when they are confined at certain geometric constraint. Although many research works have been reported on microdomain arrangement at one-dimension, two-dimension, and three-dimension confinement, the hemi-spherical(2.5-dimension) geometry has been never employed for this purpose. Here, we study, via scanning and transmission electron microscopy, the arrangement of the microdomains of polystyrene-block-poly(methyl methacrylate) copolymer (PS-b-PMMA) confined at a hemi-sphere wall.This constraint was introduced by using anodic aluminum oxide(AAO) template with two interfaces as air/BCPs and brush layers/BCPs. The inner wall surface of the hemi-sphere was further modified by three different brush layers: (1) PS, (2) PMMA, and (3) neutral brushes on PS and PMMA. We observed some interesting morphologies which have not been reported. The effects of hemi-sphere confinement on the microphase separation structures investigated experimentally and theoretically. |
| 저자 | 배두식1, 전금혜1, 변진석1, Hirosh Jinnai2, 허 준3, 김진곤1 |
| 소속 | 1POSTECH, 2KIT, 3연세대 |
| 키워드 | block copolymer; confinement |
| VOD | VOD 보기 |
| 원문파일 | 초록 보기 |
