| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 가을 (10/10 ~ 10/12, 경주컨벤션센터) |
| 권호 |
43권 2호 |
| 발표분야 |
고분자합성 |
| 제목 |
Tuning of the Activity and Induction Period of the Polymerization of Propylene Oxide Catalyzed by Double Metal Cyanide Catalysts Bearing Ethers and Esters as Complexing Agents |
| 초록 |
To develop of commercially viable catalyst systems for the ring-opening polymerization (ROP) of propylene oxide (PO), a series of double metal cyanide (DMC) catalysts of the general formula Zn3[Co(CN)6]2•xZnCl2•yH2O•z[complexing agent (CA)] have been carried out by reacting aqueous solutions of ZnCl2 and K3Co(CN)6 in the presence of ether-based compounds (ET) and ester-based compounds (ES) as CAs. The resulting catalysts were characterized by X-ray photoelectron spectroscopy, fourier transform infrared spectroscopy, and X-ray powder diffraction. Compared with DMC catalyst bearing tert-butyl alcohol (induction period up to several hours), the ET and ES produced DMC catalysts with higher catalytic activity (induction period from 10 to 20 min), demonstrate the favorable polymerization behavior for commercial aspects of both catalytic activity and reaction control. The catalysts improve polyol properties as well such as unsaturation level, molecular weight, and polydispersity index. |
| 저자 |
Hoang Chinh Tran, 김선아, 김일
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| 소속 |
부산대 |
| 키워드 |
double metal cyanide catalyst; polyol; propylene oxide
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| E-Mail |
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