| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 봄 (04/14 ~ 04/15, 전경련회관) |
| 권호 | 30권 1호, p.534 |
| 발표분야 | 고분자 구조 및 물성 |
| 제목 | Thin Films of PS-b-PtBA Diblock Copolymers for Nanotemplate Applications |
| 초록 | There has been intensive research on the fabrication of diblock copolymer thin films having cylindrical nanodomains normal to the substrate to utilize them for potential applications in membranes, nanotemplates, and nanolithography. For nanotemplate applications, we fabricated thin film of polystyrene-b-poly(t-butyl acrylate) (PS-b-PtBA, Mw 76.4kg/mol-31.6kg/mol, PDI 1.04) diblock copolymers anionically synthesized. Cylindrical PtBA nanodomains of the diblock copolymer were oriented normal to the substrate by solvent treatment. Then, they were hydrolyzed to the poly(acrylic acid) (PAA) nanodomains, or removed by UV irradiation and subsequent washing. The hydrolysis resulted in thin films with carboxylic acid-functionalized nanopores due to removal of t-butyl groups of the PtBA block. This film can be effectively used as a nanotemplate to produce nanostructures by loading inorganic materials to carboxylic acid functionality. In contrast, UV irradiation onto the thin film generated nanopores without any functional groups on the wall due to elimination of PtBA nanodomains. This film can be also used as a nanotemplate for metal deposition to fabricate inorganic nanostructures. Fig. 1. TEM and AFM images of thin films of PS-b-PtBA after hydrolysis |
| 저자 | 박대호1, 손병혁2, 전승민2, 김세희2, 정진철1, 진왕철1 |
| 소속 | 1포항공과대, 2서울대 |
| 키워드 | block copolymer; nanotemplate |
