| 학회 |
한국고분자학회 |
| 학술대회 |
2010년 봄 (04/08 ~ 04/09, 대전컨벤션센터) |
| 권호 |
35권 1호 |
| 발표분야 |
고분자 합성 |
| 제목 |
Tuning of the activity and induction period of silica supported double metal cyanide catalyzed ring-opening polymerizations of propylene oxide |
| 초록 |
Polymerization of propylene oxide have been carried out by using silica supported DMC (Si-DMCs) catalyst prepared by reacting ZnCl2 and K3[Co(CN)6]2 in the presence of various amount of tetraethyl orthosilicate (TEOS). The catalysts were characterized by elemental analysis, X-ray photoelectron spectroscopy, infrared spectroscopy, electron microscopy and X-ray powder diffraction. The polyether polyols produced by the present silica supported DMC catalysts are characterized by ultra low unsaturation level, high molecular weight, low viscosity, narrow polydispersity compared to the products produced by conventional DMC and base catalysts. The activity was increased with lower amount of TEOS. The 5 g of TEOS was found to be the optimum amount for higher polymerization activity. |
| 저자 |
최혜윤1, 윤지환2, 이전구1, 허승무2, 하창식3, 김일3
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| 소속 |
1부산대, 2합성고분자 생물접합 하이브리드 재료 사업단, 3금호석유화학 |
| 키워드 |
Catalysis; Double metal cyanide; Propylene oxide; Ring-opening polymerization
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| E-Mail |
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