Bis(beta-enaminoketonato) Vanadium (III or IV) Complexes as Catalysts for Olefin Polymerization
文献类型：期刊论文
| 作者 | Wu, Ji-Qian1,2; Li, Bai-Xiang1; Zhang, Sen-Wang1,2; Li, Yue-Sheng1 |
| 刊名 | JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
 |
| 出版日期 | 2010-07-15 |
| 卷号 | 48期号:14页码:3062-3072 |
| 关键词 | Catalysis Homogeneous Catalysis Polyolefins Ziegler-natta Polymerization |
| ISSN号 | 0887-624X |
| DOI | 10.1002/pola.24084 |
| 英文摘要 | Bis(beta-enaminoketonato) vanadium(III) complexes (2a-c) [O(R(1))C=C(H)(x)C(R(2))=NC(6)H(5)](2)VCI(THF) and the corresponding vanadium(IV) complexes (3a-c) (0(Fl1)C-=C(H)C(R2)= NC(6)H(5)](2)VO (R(1) = (CH(2))(4)-, R(2) = H, x = 0, a; R(1) = C(6)H(5), R(2) = H, x 1, b; R1 = C(6)H(5), R(2) = -C(6)H(5), X 1, C) have been synthesized from VCI(3)(THF)3 and VOCl(2)(THF)(2), respectively, by treating with 2.0 equivalent fl-enaminoketonato ligands in tetrahydrofuran. Structures of 2b and 3a-c were further confirmed by X-ray crystallographic analysis. The complexes were investigated as the catalysts for ethylene polymerization in the presence of Et(2)AlCl. Complexes 2a-c and 3a-c exhibited high catalytic activities (up to 23.76 kg of PE/mmolv h bar), and afforded polymers with unimodal molecular weight distributions at 70 'C indicating the good thermal stability. The cata- lytic behaviors were influenced not only by the oxidation state of the catalyst precursors but also by the ligand structures. Complexes 2a-c and 3a-c were also effective catalyst precursors for ethylene/1-hexene copolymerization. The influence of polymerization parameters such as reaction temperature, AIN molar ratio and hexene feed concentration on the ethylene/hexene copolymerization behaviors have bee also investigated in detail. In addition, the agents such as AlMe(3), AliBu(3), MeMgBr, MgCl(2), and ZnEt(2) were applied to control the molecular weight and molecular weight distribution modal. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 3062-3072, 2010 |
| 语种 | 英语 |
| WOS记录号 | WOS:000279707300010 |
| 出版者 | JOHN WILEY & SONS INC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/68795]  |
| 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, Changchun Branch, Grad Sch, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Ji-Qian,Li, Bai-Xiang,Zhang, Sen-Wang,et al. Bis(beta-enaminoketonato) Vanadium (III or IV) Complexes as Catalysts for Olefin Polymerization[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,2010,48(14):3062-3072. |
| APA | Wu, Ji-Qian,Li, Bai-Xiang,Zhang, Sen-Wang,&Li, Yue-Sheng.(2010).Bis(beta-enaminoketonato) Vanadium (III or IV) Complexes as Catalysts for Olefin Polymerization.JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY,48(14),3062-3072. |
| MLA | Wu, Ji-Qian,et al."Bis(beta-enaminoketonato) Vanadium (III or IV) Complexes as Catalysts for Olefin Polymerization".JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY 48.14(2010):3062-3072. |
入库方式： OAI收割
来源：化学研究所
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