Vinyl-Polyethylene Waxes with Narrow Dispersity Obtained by Using a Thermally Robust [Bis(imino)trihydroquinolyl]chromium Catalyst
文献类型：期刊论文
| 作者 | Huang, Chuanbing1,2,3; Zhang, Youfu1,2,4; Solan, Gregory A.1,2,5; Ma, Yanping1,2; Hu, Xinquan4; Sun, Yang1,2; Sun, Wen-Hua1,2,3
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| 刊名 | EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
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| 出版日期 | 2017-10-02 |
| 期号 | 36页码:4158-4166 |
| 关键词 | Homogeneous Catalysis Chromium Polymerization Polymers Tridentate Ligands |
| 英文摘要 | Five structurally related chromium(III) complexes [2-(ArNCMe)-8-(NAr)C9H8N]CrCl3 (Ar = 2,6-Me2Ph: Cr1; 2,6-Et2Ph: Cr2; 2,6-iPr(2)Ph: Cr3; 2,4,6-Me3Ph: Cr4; 2,6-Et-2-4-MePh: Cr5), each bearing an unsymmetrical bis(imino)trihydroquinoline ligand, were synthesized in good yield and fully characterized. The molecular structure of Cr2 reveals a distorted octahedral geometry at the metal center with the sterically bulky N,N,N ligand adopting a mer configuration. On activation with methyl-aluminoxane (MAO) or modified MAO, Cr1-Cr5 were highly active catalysts for ethylene polymerization operating most effectively at 80 degrees C [up to 15.96 x 10(6) g (PE)center dot mol(-1) (Cr)center dot h(-1)]; even at 100 degrees C, the activity was still good [2.92 x 10(6) g (PE)center dot mol(-1) (Cr)center dot h(-1)]. Highly linear polyethylene waxes of low molecular weight and narrow molecular weight distribution (polydispersity index: 1.1-1.8), incorporating predominantly vinyl/methyl and some methyl/methyl end groups were obtained. The influence of steric/electronic changes to the precatalyst and polymerization reaction parameters on the catalytic activity and the properties of the polymer product were the subject of a detailed investigation. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/41101]  |
| 专题 | 化学研究所_工程塑料实验室 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Engn Plast, Inst Chem, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, CAS Res Educ Ctr Excellence Mol Sci, Beijing 100049, Peoples R China 4.Zhejiang Univ Technol, Coll Chem Engn, Hangzhou 310014, Zhejiang, Peoples R China 5.Univ Leicester, Dept Chem, Leicester LE1 7RH, Leics, England |
| 推荐引用方式 GB/T 7714 | Huang, Chuanbing,Zhang, Youfu,Solan, Gregory A.,et al. Vinyl-Polyethylene Waxes with Narrow Dispersity Obtained by Using a Thermally Robust [Bis(imino)trihydroquinolyl]chromium Catalyst[J]. EUROPEAN JOURNAL OF INORGANIC CHEMISTRY,2017(36):4158-4166. |
| APA | Huang, Chuanbing.,Zhang, Youfu.,Solan, Gregory A..,Ma, Yanping.,Hu, Xinquan.,...&Sun, Wen-Hua.(2017).Vinyl-Polyethylene Waxes with Narrow Dispersity Obtained by Using a Thermally Robust [Bis(imino)trihydroquinolyl]chromium Catalyst.EUROPEAN JOURNAL OF INORGANIC CHEMISTRY(36),4158-4166. |
| MLA | Huang, Chuanbing,et al."Vinyl-Polyethylene Waxes with Narrow Dispersity Obtained by Using a Thermally Robust [Bis(imino)trihydroquinolyl]chromium Catalyst".EUROPEAN JOURNAL OF INORGANIC CHEMISTRY .36(2017):4158-4166. |
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来源：化学研究所
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