| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 가을 (10/11 ~ 10/12, 창원컨벤션센터) |
| 권호 |
37권 2호 |
| 발표분야 |
고분자구조 및 물성 |
| 제목 |
A novel approach to High Molecular Weight Polyvinyl acetate and their novel block copolymers by Cu(II) Medicated Living Radical Polymerization |
| 초록 |
The polymerization of vinyl acetate (VAc) was performed successfully in the presence of CuBr2/Terpryridine with high molecular weight PVAc and with a comparatively narrow molecular weight distribution (Mn＞100,000,Mw/Mn=1.4–1.8). Alternatively,well defined PVAc-b-PMMA Copolymers were prepared by using Cu(II) mediated atom transfer radical polymerization without an external reducing agent and free radical initiator for the first time with high molecular weight and relatively narrow molecular weight distribution (Mn=120,000,Mw/Mn=1.25). Subsequently, the polymerization proceeded by a living mechanism based on the fact that the first-order time-conversion plots linearly increased. A linear increase in the plots of the molecular weight versus the conversion also supported the living nature of the polymerization Hydrolysis of the PMMA-b-PVAc produced a PMMA-b-poly(vinyl alcohol) amphiphilic diblock copolymer. |
| 저자 |
진상웅, Mohd Yusuf Khan, 노석균
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| 소속 |
영남대 |
| 키워드 |
ATRP; vinyl acetate; copolymerization
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| E-Mail |
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