| 학회 |
한국고분자학회 |
| 학술대회 |
2012년 봄 (04/12 ~ 04/13, 대전컨벤션센터) |
| 권호 |
37권 1호 |
| 발표분야 |
고분자합성 |
| 제목 |
Polymer Preparation Using Renewable Resources of Carbon Dioxide or Carbon Monoxide |
| 초록 |
A highly active catalyst was disclosed for the CO2/propylene oxide (PO) copolymerization. It is a cobalt(III) complex prepared from a Salen-type ligand tethered by four quaternary ammonium salts. The catalyst showed a high turnover number (TON) up to 16000 and a high turnover frequency (TOF) of 16000 h-1 that produced a strictly alternating copolymer with a high molecular weight (Mn) of up to 300000. These performances allow for constructing a pilot plant for continuous commercial process. Recent progess in this work will be presented. Morphology of the polymer particles can be controlled in ethylene/CO copolymerization by pressurizing catalyst-containing 1-octanol droplets dispersed in water. The catalyst should be harnessed with lipophilic long alkyl chains. Polymer particles of 0.5-1.0 mm size with bulk densities of 0.2-0.4 g/mL are produced without reactor fouling. |
| 저자 |
이분열 |
| 소속 |
아주대 |
| 키워드 |
renewable resources; CO2/PO copolymer; salen-Co(III) complex; CO/Ethylene copolymer; morphology control
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| E-Mail |
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