Ethylene polymerization and ethylene/hexene copolymerizaion with vandium catalysts bearing thiophenolphosphine ligands
文献类型：期刊论文
| 作者 | Zhang, Sen-wang; Li, Yan-guo; Lu, Ling-pan; Li, Yue-sheng |
| 刊名 | CHINESE JOURNAL OF POLYMER SCIENCE
 |
| 出版日期 | 2013-06-01 |
| 卷号 | 31期号:6页码:885-893 |
| 关键词 | Ziegler-natta Polymerization Vanadium Catalyst Polyethylene Copolymerization |
| ISSN号 | 0256-7679 |
| DOI | 10.1007/s10118-013-1282-z |
| 英文摘要 | Vanadium(III) complexes bearing thiophenol-phosphine ligands (2a-2b) (2-R-6-PPh2-C6H2S) VCl2(THF)(2) (2a: R = H; 2b: R = Me3Si) were prepared from VCl3(THF)(3) by treating with 1.0 equiv of the ligand in tetrahydrofuran in the presence of excess triethylamine. The two complexes were characterized by FTIR and mass spectra as well as elemental analyses. On activation with Et2AlCl, these complexes exhibited high catalytic activities (up to 22.1 kg PE/(mmol(V)center dot h center dot bar)) even at high temperature (70 A degrees C), and produced high molecular weight polymers with unimodal molecular weight distributions, indicating the polymerization took place in a single-site nature. This result may be attributed to benefits of introduction of second-row donor atoms for adjusting charge density of the vanadium centers. In addition, these complexes also exhibited high catalytic activities for ethylene/1-hexene copolymerization. Catalytic activity, comonomer incorporation and polymer molecular weight can be controlled in a wide range by the variation of catalyst structure and the reaction parameters such as Al/V molar ratio, comonomer feed concentration and polymerization reaction temperature. |
| 语种 | 英语 |
| WOS记录号 | WOS:000317985500005 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/46659]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Li, Yue-sheng |
| 作者单位 | Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Sen-wang,Li, Yan-guo,Lu, Ling-pan,et al. Ethylene polymerization and ethylene/hexene copolymerizaion with vandium catalysts bearing thiophenolphosphine ligands[J]. CHINESE JOURNAL OF POLYMER SCIENCE,2013,31(6):885-893. |
| APA | Zhang, Sen-wang,Li, Yan-guo,Lu, Ling-pan,&Li, Yue-sheng.(2013).Ethylene polymerization and ethylene/hexene copolymerizaion with vandium catalysts bearing thiophenolphosphine ligands.CHINESE JOURNAL OF POLYMER SCIENCE,31(6),885-893. |
| MLA | Zhang, Sen-wang,et al."Ethylene polymerization and ethylene/hexene copolymerizaion with vandium catalysts bearing thiophenolphosphine ligands".CHINESE JOURNAL OF POLYMER SCIENCE 31.6(2013):885-893. |
入库方式： OAI收割
来源：化学研究所
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