Activity and Stability Spontaneously Enhanced Toward Ethylene Polymerization by Employing 2-(1-(2,4-Dibenzhydrylnaphthylimino) Ethyl)-6-(1-(Arylimino) Ethyl) Pyridyliron(II) Dichlorides
文献类型：期刊论文
| 作者 | Zhao, Weizhen1; Yue, Erlin1,2; Wang, Xinxin1; Yang, Wenhong1; Chen, Yan1; Hao, Xiang1; Cao, Xiaoping2; Sun, Wen-Hua1
|
| 刊名 | JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
 |
| 出版日期 | 2017-03-01 |
| 卷号 | 55期号:6页码:988-996 |
| 关键词 | Calculations Ethylene Polymerization Linear Polyethylenes (Pe) High Molecular Weight Iron Complexes |
| 英文摘要 | A series of 2-(1-(2,4-dibenzhydrylnaphthylimino) ethyl)6-(1-(arylimino) ethyl) pyridyliron(II) complexes (Fe1-Fe5) was synthesized and characterized. The molecular structure of the representative Fe2 was determined by single-crystal X-ray diffraction, revealing a distorted pseudo-square-pyramidal geometry around the iron center. On activation with eithermethyl aluminoxane (MAO) or modified methylaluminoxane (MMAO), all these iron complex precatalysts performed with high activities (up to 1.58 x 10(7) g (PE) mol(-1) (Fe) h(-1)) toward ethylene polymerization, producing highly linear polyethylenes with highmolecular weight and bimodal distribution, which was in accordance with high temperature C-13 NMR, high T-m values (T-m similar to 130 degrees C) and the GPC curves of the obtained polyethylenes. Meanwhile, DFT calculation results also showed the good correlation between net charges on iron and experimental activities. Compared with previous bis(imino) pyridyliron analogues, the current iron complexes containing the benzhydrylnaphthyl groups exhibited relatively higher activities and better thermalstability at elevated temperatures, especially at 80 degrees C as the industrial operating temperature, and still showed high activities toward ethylene polymerization up to 8.57 x 10(6) g (PE) mol(-1) (Fe) h(-1) in the presence of co-catalyst MMAO. In addition, these iron complex precatalysts all exhibited long lifetimes. (C) 2017 Wiley Periodicals, Inc. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38118]  |
| 专题 | 化学研究所_工程塑料实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Key Lab Engn Plast, Beijing 100190, Peoples R China 2.Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Weizhen,Yue, Erlin,Wang, Xinxin,et al. Activity and Stability Spontaneously Enhanced Toward Ethylene Polymerization by Employing 2-(1-(2,4-Dibenzhydrylnaphthylimino) Ethyl)-6-(1-(Arylimino) Ethyl) Pyridyliron(II) Dichlorides[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2017,55(6):988-996. |
| APA | Zhao, Weizhen.,Yue, Erlin.,Wang, Xinxin.,Yang, Wenhong.,Chen, Yan.,...&Sun, Wen-Hua.(2017).Activity and Stability Spontaneously Enhanced Toward Ethylene Polymerization by Employing 2-(1-(2,4-Dibenzhydrylnaphthylimino) Ethyl)-6-(1-(Arylimino) Ethyl) Pyridyliron(II) Dichlorides.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,55(6),988-996. |
| MLA | Zhao, Weizhen,et al."Activity and Stability Spontaneously Enhanced Toward Ethylene Polymerization by Employing 2-(1-(2,4-Dibenzhydrylnaphthylimino) Ethyl)-6-(1-(Arylimino) Ethyl) Pyridyliron(II) Dichlorides".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 55.6(2017):988-996. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。