Bifunctional Aluminum Porphyrin Catalysts for Copolymerization of CO2 and Epoxides
文献类型：期刊论文
| 作者 | Wu,Wei ; Qin,Yu-sheng ; Wang,Xian-hong ; Wang,Fo-song |
| 刊名 | 高分子学报 acta polymerica sinica
 |
| 出版日期 | 2014 |
| 期号 | 7页码:1017-1022 |
| 关键词 | CARBON-DIOXIDE CYCLOHEXENE OXIDE PROPYLENE-OXIDE METAL-COMPLEXES POLYCARBONATES EFFICIENT PROGRESS SYSTEM |
| 通讯作者 | qin, ys |
| 英文摘要 | due to the concern on residue toxic metal in biodegradable polycarbonate, environmental friendly aluminum complexes, i. e, bifunctional aluminum porphyrin complexes were prepared by anchoring quaternary ammonium salts to the porphyrin ligand framework. the structures of all the complexes were confirmed by h-1-nmr,c-13-nmr and maldi-tof analysis. these catalysts exhibited enhanced activity and selectivity for the copolymerization of co2 and propylene oxide (po) compared with the aluminum porphyrin/quaternary ammonium salt binary catalyst system. using complex 1b as catalyst, the influence of reaction conditions such as co2 pressure, reaction temperature and [po]/[cat.] ratio etc, on copolymerization behavior was investigated. the tof (turnover frequency of epoxide to products) of catalyst 1b can reach 1152 h(-1) in 5 h at 90 degrees c under 3.0 mpa, while the resultant copolymer showed a carbonate linkage of 98% and number average molecular weight (m-n) of 42 x 10(3), though the ppc selectivity was 68%. when the copolymerization of co2 and cyclohexene oxide (cho) was conducted by using catalyst 1b at the same reaction condition, a tof as high as 621 h(-1) was reached, the carbonate linkage of the obtained copolymer was 81% and the number average molecular weight was 8.0 x 10(3), while the polymer selectivity was 100%. additionally, our work also indicates that variation of the quaternary ammonium anion and the axial ligand had dramatic effects on the catalytic activity of resultant complex. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000340023000021 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/57559]  |
| 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 | Wu,Wei,Qin,Yu-sheng,Wang,Xian-hong,et al. Bifunctional Aluminum Porphyrin Catalysts for Copolymerization of CO2 and Epoxides[J]. 高分子学报 acta polymerica sinica,2014(7):1017-1022. |
| APA | Wu,Wei,Qin,Yu-sheng,Wang,Xian-hong,&Wang,Fo-song.(2014).Bifunctional Aluminum Porphyrin Catalysts for Copolymerization of CO2 and Epoxides.高分子学报 acta polymerica sinica(7),1017-1022. |
| MLA | Wu,Wei,et al."Bifunctional Aluminum Porphyrin Catalysts for Copolymerization of CO2 and Epoxides".高分子学报 acta polymerica sinica .7(2014):1017-1022. |
入库方式： OAI收割
来源：长春应用化学研究所
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