Selective synthesis of oligo(carbonate-ether) diols from copolymerization of CO2 and propylene oxide under zinc-cobalt double metal cyanide complex
文献类型：期刊论文
| 作者 | Gao YG ; Qin YS ; Zhao XJ ; Wang FS ; Wang XH |
| 刊名 | journal of polymer research
 |
| 出版日期 | 2012 |
| 卷号 | 19期号:5页码:文献号: 9878 |
| 关键词 | RING-OPENING POLYMERIZATION CARBON-DIOXIDE OLIGOCARBONATE DIOLS POLY(PROPYLENE CARBONATE) POLYCARBONATE SYNTHESIS ETHYLENE CARBONATE DIMETHYL CARBONATE CATALYTIC-ACTIVITY ALIPHATIC DIOLS EPOXIDES |
| ISSN号 | 1022-9760 |
| 通讯作者 | wang xh |
| 中文摘要 | colorless oligo(carbonate-ether) diols were selectively synthesized in high efficiency from copolymerization of co2 and propylene oxide (po) using zn-3[co(cn)(6)](2)-based double metal cyanide complex (dmc) as catalyst and different molecular weight polypropylene glycols (ppgs) as chain transfer agent. the catalytic activity was related to carbonate unit content and molecular weight of target oligo(carbonate-ether) diols, for oligo(carbonate-ether) diol with number average molecular weight of 6.4 kg/mol and carbonate unit content of 34.3 %, it reached 10.0 kg oligomer/g dmc catalyst during 10 h of copolymerization. generally, the number average molecular weight of the oligo(carbonate-ether) diol was tunable between 1.8 kg/mol and 6.4 kg/mol, and the molecular weight distribution was controllable between 1.14 and 1.83. moreover, the carbonate unit content in the oligo-diols can be adjusted between 15.3 % and 62.5 %, lower temperature and higher co2 pressure were favorable for higher carbonate content. better selectivity of oligo(carbonate-ether) diol over propylene carbonate(pc) was realized, where the weight ratio of pc (w-pc) was controlled less than 8.0 wt%. we also found that the alkali metal ion residue may play an important role in pc formation, in some cases this effect may be more significant than backbiting process, removing the residual alkali metal ion should be meaningful in the future to further reduce the pc formation. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000304135400017 |
| 公开日期 | 2013-05-22 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/48188]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Gao YG,Qin YS,Zhao XJ,et al. Selective synthesis of oligo(carbonate-ether) diols from copolymerization of CO2 and propylene oxide under zinc-cobalt double metal cyanide complex[J]. journal of polymer research,2012,19(5):文献号: 9878. |
| APA | Gao YG,Qin YS,Zhao XJ,Wang FS,&Wang XH.(2012).Selective synthesis of oligo(carbonate-ether) diols from copolymerization of CO2 and propylene oxide under zinc-cobalt double metal cyanide complex.journal of polymer research,19(5),文献号: 9878. |
| MLA | Gao YG,et al."Selective synthesis of oligo(carbonate-ether) diols from copolymerization of CO2 and propylene oxide under zinc-cobalt double metal cyanide complex".journal of polymer research 19.5(2012):文献号: 9878. |
入库方式： OAI收割
来源：长春应用化学研究所
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