| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 봄 (04/14 ~ 04/15, 전경련회관) |
| 권호 | 30권 1호, p.172 |
| 발표분야 | 고분자 구조 및 물성 |
| 제목 | Single-Layered Films of Diblock Copolymer Micelles in Long-Range Order |
| 초록 | We fabricated a single-layered film of polystyrene-block-poly(4-vinyl pyridine), PS-PVP, diblock copolymer micelles in long-range order by solvent treatment. In toluene, a selective solvent for the PS block, spherical micelles of PS-PVP diblock copolymers consisting of the PS corona and the PVP core were formed. From this toluene solution, a single-layered film of the micelles was fabricated on the substrate such as silicon wafers by spin coating. The film was made of hexagonal arrays of the micelles in short-range order. When the micellar film was directly exposed to toluene again, no effect on the morphology was observed. However, when the film was exposed to DMF, a non-selective neutral solvent for PS-PVP diblock copolymers, parallel cylinders of the PVP blocks were obtained as like the bulk morphology of PS-PVP copolymers used. In contrast, exposure of the film to THF, a less selective solvent for PS-PVP diblock copolymers, induced the long-range order of the micelles as well as the narrow size distribution of the micelles. This single-layered film of the micelles in long-range order can be used to generate well-ordered arrays of nanoparticles. Fig 1. Plan-view TEM images of thin films of PS-PVP micelles: (a) as spin coated; (b) after toluene treatment; (c) after DMF treatment; (d) after THF treatment. |
| 저자 | 윤상현1, 손병혁2, 장재준2, 진선희2, 정진철1, 진왕철1 |
| 소속 | 1포항공과대, 2서울대 |
| 키워드 | Diblock Copolymer Micelles; Solvent Treatment |
