| 학회 |
한국고분자학회 |
| 학술대회 |
2010년 가을 (10/07 ~ 10/08, 대구 EXCO) |
| 권호 |
35권 2호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Synthesis of poly(ethylene oxide) -b- poly(N-vinyl imidazole) -b- poly(maleic acid) viaRAFT radical polymerization |
| 초록 |
We have successfully synthesized PEO-based tri-block copolymer via transformation reaction from anionic to RAFT radical. We synthesized ω-brominated poly(ethylene oxide) by chain-end functionalization after living anionic ring opening polymerization of ethylene oxide, followed by converting it to the PEO-based RAFT agent. Using the PEO-based RAFT agent and AIBN as the initiating system, RAFT radical polymerization of N-vinyl imidazole and N-phenylmaleimide via sequential monomer addition technique for preparation of block copolymer in DMF at 110 ℃ for 72 h under argon produced the corresponding triblock copolymer. The resulting triblock copolymer was deimidated by using hydrazine monohydrate with NaOH in DMSO at 110 ℃ for 24 h, followed by precipitating in diethyl ether. All the products were dried in vaccum oven at room temperature for at least 48 h and then characterized by 1H-NMR and size exclusion chromatographic analysis. |
| 저자 |
남주현, 김정안, 김진흥, 조영준, 김유진, 최우석
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| 소속 |
경희대 |
| 키워드 |
triblock |
| E-Mail |
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