| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
고분자합성 |
| 제목 |
Analysis of the Living Chains in Polystyrene prepared by reversible addition-fragmentation chain transfer Polymerization |
| 초록 |
Living chains and dead chains with and without thiocarbonylthio as the ω end-group are generated in reversible addition-fragmentation chain transfer (RAFT) polymerization. Further, the living chains are of two types in regard to α end-groups depending on the nature of initiation. We report on the separation of two types of living chains in RAFT polymerization of polystyrene by interaction chromatography. The living chains are characterized by nuclear magnetic resonance (NMR), matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and size exclusion chromatography (SEC). In SEC, the living chains from the initiator show a broad Molecular weight distribution (MWD) with tailing at low molecular weight while the living chains from the RAFT agent show a narrower MWD in comparison to the as prepared sample. |
| 저자 |
김경호1, 안준영2, 박미림1, 김연지3, 이하나3, 전흥배3, 장태현2, 백현종1
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| 소속 |
1부산대, 2포항공과대, 3광운대 |
| 키워드 |
reversible addition-fragmentation chain transfer polymerization; RAFT polymerization; molecular weight distribution; living chains
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| E-Mail |
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