| 학회 |
한국화학공학회 |
| 학술대회 |
2007년 가을 (10/26 ~ 10/27, 한국과학기술원) |
| 권호 |
13권 2호, p.1687 |
| 발표분야 |
생물화공 |
| 제목 |
Radical polymerization of styrene catalyzed by manganese peroxidase (MnP) |
| 초록 |
Manganese peroxidase (MnP) secreted from the white-rot fungus Phanerochate chrysporium is a lignin-degrading enzyme. Styrene was polymerized to give polystyrene using MnP and Manganese (III) acetate and conducted by miniemulsion polymerization. In the polymerization using the Manganese(III) acetate, the polymer yield was increased while the concentration of 2,4-pentanedione as initiator was increased to 8mM and decreased while the concentration of initiator was from 12mM to 72mM. Additionally, 1H-NMR and 13C-NMR spectras revealed that predominately atatic polymer was formed. The glass transition temperature (Tg) was estimated to be 103°C by DSC. The polymerization of polystyrene synthesized by MnP was started by adding the H2O2. The yield of polystyrene synthesized by MnP was increased from 34.74% to 44.88% when the concentration of MnSO4 decreased from 4mM to 1mM, respectively. Additionally, The morphology and thermal stability were also similar to polystyrene synthesized by Manganese(III) acetate. The styrene polymerization reactions reported here are carried out at room temperature via a mild enzymatic modification process. |
| 저자 |
권혁성, 정은용, 황상필, 이동익, 황길수, 안익성
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| 소속 |
연세대 |
| 키워드 |
polystyrene; manganese peroxidase; radical polymerization
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| E-Mail |
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| 원문파일 |
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