New sterically hindered unbridged zirconocene complexes with 1,2-diphenylcyclopentadienyl ligands: synthesis, structure and properties as olefin polymerization catalysts
文献类型：期刊论文
| 作者 | Zhang, F; Mu, Y; Zhao, LG; Zhang, YT; Bu, WM; Chen, CX; Zhai, HM; Hong, H |
| 刊名 | JOURNAL OF ORGANOMETALLIC CHEMISTRY
 |
| 出版日期 | 2000-10-27 |
| 卷号 | 613期号:1页码:68-76 |
| 关键词 | Zirconocene Ligand Modification Catalyst Olefin Polymerization |
| ISSN号 | 0022-328X |
| 英文摘要 | New unbridged zirconocene complexes, bis(1,2-diphenylcyclopentadienyl)zirconium dichloride (3) and bis(4-methy-1,2-diphenylcyclopentadienyl)zirconium dichloride (4) have been synthesized in high yield by reaction of ZrCl4 with the lithium salt of 1,1,2-diphenylcyclopentadiene (1) or 4-methyl-1,2-diphenylcyclopentadiene (2), respectively. X-ray crystallographic analysis reveals both complexes are in racemic-like conformation with near C-2 symmetry in solid state. When activated with methylaluminoxane (MAO), 3 and 4 exhibit moderate catalytic activities for ethylene polymerization at relatively low Al:Zr ratios, producing high molecular weight (>10(6)) polyethylenes with high melting transition temperatures. Atactic propylene oligomers with average molecular weight of similar to 10(3) g mol(-1) were produced by both 3 and 4 at relatively high catalytic activities upon activation with MAO. (C) 2000 Elsevier Science B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000165522900012 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/75907]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Mu, Y |
| 作者单位 | 1.Jilin Univ, Dept Chem, Changchun 130023, Peoples R China 2.Jilin Univ, Key Lab Supramol Struct & Spect, Changchun 130023, Peoples R China 3.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, F,Mu, Y,Zhao, LG,et al. New sterically hindered unbridged zirconocene complexes with 1,2-diphenylcyclopentadienyl ligands: synthesis, structure and properties as olefin polymerization catalysts[J]. JOURNAL OF ORGANOMETALLIC CHEMISTRY,2000,613(1):68-76. |
| APA | Zhang, F.,Mu, Y.,Zhao, LG.,Zhang, YT.,Bu, WM.,...&Hong, H.(2000).New sterically hindered unbridged zirconocene complexes with 1,2-diphenylcyclopentadienyl ligands: synthesis, structure and properties as olefin polymerization catalysts.JOURNAL OF ORGANOMETALLIC CHEMISTRY,613(1),68-76. |
| MLA | Zhang, F,et al."New sterically hindered unbridged zirconocene complexes with 1,2-diphenylcyclopentadienyl ligands: synthesis, structure and properties as olefin polymerization catalysts".JOURNAL OF ORGANOMETALLIC CHEMISTRY 613.1(2000):68-76. |
入库方式： OAI收割
来源：化学研究所
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