Ethylene Polymerization by the Chromium Catalysts Based on Bidentate [O, P=O] or [S, P] Ligands
文献类型：期刊论文
| 作者 | He, Li-Peng1,2; Mu, Hong-Liang1,2; Li, Bai-Xiang1; Li, Yue-Sheng1 |
| 刊名 | JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
 |
| 出版日期 | 2010-01-15 |
| 卷号 | 48期号:2页码:311-319 |
| 关键词 | Catalysis Polyolefins Ziegler-natta Polymerization |
| ISSN号 | 0887-624X |
| DOI | 10.1002/pola.23785 |
| 英文摘要 | Novel chromium catalysts based on bidentate phenoxy-phosphinoyl (HO-2R(1)-4R(2)-6(Ph(2)P=O)C(6)H(2): R(1) = R(2) = H, 3a; R(1) = tBu, R(2) = H, 3b; R(1) = R(2) = tBu, 3c; R(1) = R(2) = cumyl, 3d; R(1) = anthracenyl, R(2) = H, 3e) and thiophenol-phosphine (HS-2R(1)-4R(2)-6(Ph(2)P)C(6)H(2): R(1) = R(2) = H, 4a; R(1) = SiMe(3), R(2) = H, 4b) were prepared and characterized. Treatment with modified methyaluminoxane, these catalysts displayed moderate to high-catalytic activities for ethylene polymerization. The activities of them were higher than those of the corresponding catalysts based on bidentate phenoxy-phosphine ligands. Both the coordinated donors and the ortho-substituent of the ligands played an important role in improving catalytic activity. The effects of reaction parameters, such as cocatalyst and Al/Cr molar ratio as well as reaction temperature, on ethylene polymerization behaviors were investigated in detail for two favorable catalytic systems, 3b/CrCl(3)(thf)(3) and 4b/CrCl(3)(thf)(3). Catalyst 4b/CrCl(3)(thf)(3) displayed higher catalytic activity and better temperature tolerance for ethylene polymerization than 3b/CrCl(3)(thf)(3). (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 311-319, 2010 |
| 语种 | 英语 |
| WOS记录号 | WOS:000273581700005 |
| 出版者 | JOHN WILEY & SONS INC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/70503]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Li, Yue-Sheng |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Changchun Branch, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Li-Peng,Mu, Hong-Liang,Li, Bai-Xiang,et al. Ethylene Polymerization by the Chromium Catalysts Based on Bidentate [O, P=O] or [S, P] Ligands[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2010,48(2):311-319. |
| APA | He, Li-Peng,Mu, Hong-Liang,Li, Bai-Xiang,&Li, Yue-Sheng.(2010).Ethylene Polymerization by the Chromium Catalysts Based on Bidentate [O, P=O] or [S, P] Ligands.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,48(2),311-319. |
| MLA | He, Li-Peng,et al."Ethylene Polymerization by the Chromium Catalysts Based on Bidentate [O, P=O] or [S, P] Ligands".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 48.2(2010):311-319. |
入库方式： OAI收割
来源：化学研究所
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