| 학회 |
한국고분자학회 |
| 학술대회 |
2017년 봄 (04/05 ~ 04/07, 대전컨벤션센터) |
| 권호 |
42권 1호 |
| 발표분야 |
고분자합성 |
| 제목 |
Effect of Complexing Agents on the Performance of Double Metal Cyanide Catalysts for Producing Polyols |
| 초록 |
Double metal cyanide (DMC) catalysts are well-known heterogeneous acid catalysts for the ring-opening polymerization (ROP) of propylene oxide (PO). Typically, a series of DMC catalysts were prepared by reacting aqueous zinc (II) chloride with aqueous potassium hexacyanocobaltate (III) in the presence of various complexing agents (CAs). In order to investigate the effect of CA on the ROP behaviors we have chosen various CAs with ester groups. The resulting DMC catalysts were characterized by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, X-ray powder diffraction and thermal analysis. The resultant polyols were analyzed by using nuclear magnetic resonance spectroscopy, FTIR and gel permeation chromatography. Poly(propylene oxide) polyols catalyzed by the DMC catalysts of this study showed ultra-low level of unsaturation (0.0020 - 0.0030 meq g-1), moderate molecular weight (Mn = 2500 – 4000 g mol-1), and narrow polydispersity index (1.06 - 1.08). |
| 저자 |
팜티투이린, 김일, Hoang Chinh Tran
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| 소속 |
부산대 |
| 키워드 |
Complexing agents; Double metal cyanide catalyst; Polyols
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| E-Mail |
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