| 학회 |
한국고분자학회 |
| 학술대회 |
2017년 봄 (04/05 ~ 04/07, 대전컨벤션센터) |
| 권호 |
42권 1호 |
| 발표분야 |
의료용 고분자 부문위원회 I |
| 제목 |
Preparation and characterization of porous particles by surfactant-free emulsion RAFT polymerization |
| 초록 |
Porous polystyrene (PS) particles were synthesized through surfactant-free emulsion polymerization in the ab initio batch condition based on RAFT (reversible addition-fragmentation chain transfer) polymerization. Water-soluble amphiphilic RAFT agent was synthesized from poly(ethylene glycol) methyl ether and 2-(dodecylthiocarbonothioylthio)-2-methylpropionic acid (DDMAT). Styrene was copolymerized with methyl vinyl ketone (MVK) using VA-044 (2,2'-azobis[2-(2-imidazolin-2-yl)propane]dihydrochloride) as an initiator, followed by the photodegradation by UV irradiation. PS particles were characterized with FT-IR (Fourier transform infrared), 1H-NMR spectroscopies. GPC and DLS confirmed the narrow polydispersities and the formation of narrow-distributed particles. Porous surface and morphology of particles were confirmed by SEM and TEM images. Porous PS particles are expected to be used in drug delivery system and future biomaterials. |
| 저자 |
장보윤, 김태윤, 정일두
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| 소속 |
부산대 |
| 키워드 |
porous; RAFT; polystyrene; emulsion; UV irradiation; photodegradable
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| E-Mail |
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