| 학회 |
한국고분자학회 |
| 학술대회 |
2008년 봄 (04/10 ~ 04/11, 컨벤션 뷰로(대전)) |
| 권호 |
33권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Synthesis of new poly(ethylene oxide)-based block copolymer exibiting pH sensitive phase transition and it`s use for preparation of Fe3O4 nanoparticles |
| 초록 |
Block copolymer was simply synthesized by anionic polymerization of N-phenylmaleimide (N-PMI) in the mixture of benzene/THF/DMSO (30/5/8) at room temperature using mixed alkali metal polymeric alkoxide produced from n-butyllithium-initiated ring opening polymerization of ethylene oxide (EO) in the presence of potassium tert-butoxide in the mixture of benzene/DMSO at 35℃. The molecular weight of the block copolymers was controlled. The N-PMI fragment was deimidization in DMSO at 120℃ using hydrazine monohydrate. This PEO-based block copolymer shows pH sensitive phase transition. We used it to prepare water-soluble nano-sized iron oxide. we will report the result for this study. |
| 저자 |
고다현, 김정안, 김근석, 김태환, 최진희
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| 소속 |
경희대 |
| 키워드 |
PEO; pH-sensitive; N- Phenylmaleimide
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| E-Mail |
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