| 학회 | 한국화학공학회 |
| 학술대회 | 2008년 가을 (10/23 ~ 10/24, 부산 BEXCO) |
| 권호 | 14권 2호, p.2317 |
| 발표분야 | 고분자 |
| 제목 | Synthesis and photocatalytic activity of Titania Nanoparticle Arrays templated by amphiphilic POEM-b-PS-b-POEM triblock Copolymer Thin Films |
| 초록 | A novel ABA-type triblock copolymer, i.e. poly(oxyethylene methacrylate)-b-polystyrene-b-poly(oxyethylene methacrylate) (POEM-b-PS-b-POEM) was synthesized via ATRP. This amphiphilic triblock copolymer was used to template the growth of TiO2 from a titanium isopropoxide through sol-gel process in the solid state film. The hydrophilic titania precursor was selectively incorporated into hydrophilic POEM domains and formed TiO2 nanoparticle arrays, mostly due to microphase separation between the PS domains and the POEM/TiO2 domains. High-density arrays of TiO2 nanoparticles with 30 - 40 nm size after calcinations at 550 oC were confirmed by XPS, UV-visible spectroscopy, WAXS and TEM. The resultant TiO2 nanoparticles showed high photocatalytic activity on the photodegradation of humic acid. This work was supported by the Korea Science and Engineering Foundation(KOSEF) grant funded by the Korea government(MEST) (No. R01-2008-000-10112-0) |
| 저자 | 고주환, 박정태, 노동규, 고종관, 김종학 |
| 소속 | 연세대 |
| 키워드 | block copolymer; ATRP; TiO2; nanoparticle; photodegradation |
| 원문파일 | 초록 보기 |
