| 학회 | 한국화학공학회 |
| 학술대회 | 2007년 가을 (10/26 ~ 10/27, 한국과학기술원) |
| 권호 | 13권 2호, p.2247 |
| 발표분야 | 재료 |
| 제목 | Dispersion Polymerization of 2-Hydroxyethyl Methacrylate (HEMA) and Surface Modification of PHEMA with Glycidyl Methacrylate (GMA) in Compressed Liquid Dimethyl Ether (DME) |
| 초록 | The free radical dispersion polymerization of 2-hydroxyethyl methacrylate (HEMA) has been carried out in compressed liquid DME using several surfactants. The polymerization are performed in the presence of fluorine-based and siloxane-based surfactants. The spherical and relatively uniform poly(2-hydroxyethyl methacrylate) (PHEMA) particles could be produced even at 20 bar, with a narrow particle size distribution in compressed liquid DME. Chemical modification at the surface of PHEMA particles was also conducted with functional monomer, glycidyl methacrylate (GMA). When the dispersion polymerization of HEMA was performed in DME, the -OH group of PHEMA existed at the surface of PHEMA particles by DME. Therefore, PHEMA particles modified with the epoxy group of GMA. These results indicated that it could make the polymer particles which have vinyl end groups at the particles’ surface. |
| 저자 | 오경실1, 조동우1, 배 원2, 손은호1, 이종찬1, 이윤우1, 김화용1 |
| 소속 | 1서울대, 2미원상사주식회사 |
| 키워드 | PHEMA; dispersion polymerization; surface modification; GMA; DME |
| 원문파일 | 초록 보기 |
