Copolymerizations of ethylene with alpha-olefin-omega-ols by highly active vanadium(III) catalysts bearing [N,O] bidentate chelated ligands
文献类型：期刊论文
| 作者 | Mu, Jing-Shan1,2; Liu, Jing-Yu1; Liu, San-Rong1; Li, Yue-Sheng1 |
| 刊名 | POLYMER
 |
| 出版日期 | 2009-10-09 |
| 卷号 | 50期号:21页码:5059-5064 |
| 关键词 | Catalyst For Polymerization Copolymerization Polyethylene |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2009.09.003 |
| 英文摘要 | The copolymerizations of ethylene with polar hydroxyl monomers such as 10-undecen-1-ol, 5-hexen-1-ol and 3-buten-1-ol were investigated by the vanadium(III) catalysts bearing bidentate [N,O] ligands (1, [PhN=C(CH(3))CHC(Ph)O]VCl(2)(THF)(2): 2, [PhN=CHC(6)H(4)O]VCl(2)(THF)(2); 3, [PhN=CHC(Ph)CHO]VCl(2)(THF)(2)). The polar monomers were pretreated by alkylaluminum before the polymerization. High catalytic activities and efficient comonomer incorporations can be easily obtained by changing monomer masking reagents and polymerization conditions in the presence of diethylaluminium chloride as a cocatalyst. The longer the spacer group, the higher the incorporation of the monomer. Under the mild conditions, the incorporation level of 10-undecen-1-ol reached 13.9 mol% in the resultant copolymers was obtained. The reactivity ratios of copolymerization (r(1) = 41.4, r(2) = 0.02, r(1)r(2) = 0.83) were evaluated by Fineman-Ross method. According to (13)C NMR spectra, polar units were located both on the main chain and at the chain end. The end-hydroxylated polymers were probably obtained due to the formation of dormant species after the insertion of the comonomer followed by the chain transfer to alkylaluminum. In addition, the signals derived from polar monomer inverse insertion were detected for the first time. (C) 2009 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000270705700012 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/67433]  |
| 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 | Mu, Jing-Shan,Liu, Jing-Yu,Liu, San-Rong,et al. Copolymerizations of ethylene with alpha-olefin-omega-ols by highly active vanadium(III) catalysts bearing [N,O] bidentate chelated ligands[J]. POLYMER,2009,50(21):5059-5064. |
| APA | Mu, Jing-Shan,Liu, Jing-Yu,Liu, San-Rong,&Li, Yue-Sheng.(2009).Copolymerizations of ethylene with alpha-olefin-omega-ols by highly active vanadium(III) catalysts bearing [N,O] bidentate chelated ligands.POLYMER,50(21),5059-5064. |
| MLA | Mu, Jing-Shan,et al."Copolymerizations of ethylene with alpha-olefin-omega-ols by highly active vanadium(III) catalysts bearing [N,O] bidentate chelated ligands".POLYMER 50.21(2009):5059-5064. |
入库方式： OAI收割
来源：化学研究所
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