Synthesis and characterization of fluoro-substituted beta-enaminoketonato titanium complexes and their catalytic behavior of regioselective ethylene/cyclopentadiene copolymerization
文献类型：期刊论文
| 作者 | Li YG ; Hong M ; Zhang GB ; Li YS |
| 刊名 | chinese journal of polymer science
 |
| 出版日期 | 2013 |
| 卷号 | 31期号:4页码:574-582 |
| 关键词 | LIVING COPOLYMERIZATION CATIONIC POLYMERIZATION REPEATED 1 MOLECULAR-WEIGHT CHELATE LIGANDS ETHYLENE CYCLOPENTADIENE FUNCTIONALIZATION 1 MAO 2-INSERTION 5-HEXADIENE |
| ISSN号 | 0256-7679 |
| 通讯作者 | li ys |
| 中文摘要 | the ethylene/cyclopentadiene (cpd) copolymerization behavior by using fluoro-substituted bis(beta-enaminoketonato) titanium complexes [fc6h4nc(ch3)chco(cf3)](2)ticl2 (1a-1c) has been investigated in detail. upon utilizing mmao as a cocatalyst, complexes 1a-1c exhibit high catalytic activities, affording the copolymers with high molecular weight and unimodal molecular weight distribution. compared with non-substituted complex [c6h5nc(ch3)chco(cf3)](2)ticl2 (1), complexes 1a-1c can produce the copolymers with cpd incorporation adjusted in a wide range due to the enhancement of electrophilicity of metal center caused by introducing electron-withdrawing groups. especially complex 1c bearing fluorine at the para-position of n-aryl moiety provides the highest cpd incorporation, which is nearly two times (18.5 mol%) higher than the non-substituted complex 1 (8.9 mol%) under the same conditions. the highest cpd incorporation up to 24.6 mol% can be easily achieved using this complex. h-1- and c-13-nmr spectra demonstrate that these fluoro-substituted complexes possess regioselective nature with exclusive 1,2-insertion fashion, and alternating ethylene-cpd sequence can be detected at high cpd incorporation. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000316079600004 |
| 公开日期 | 2014-04-16 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/49953]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Li YG,Hong M,Zhang GB,et al. Synthesis and characterization of fluoro-substituted beta-enaminoketonato titanium complexes and their catalytic behavior of regioselective ethylene/cyclopentadiene copolymerization[J]. chinese journal of polymer science,2013,31(4):574-582. |
| APA | Li YG,Hong M,Zhang GB,&Li YS.(2013).Synthesis and characterization of fluoro-substituted beta-enaminoketonato titanium complexes and their catalytic behavior of regioselective ethylene/cyclopentadiene copolymerization.chinese journal of polymer science,31(4),574-582. |
| MLA | Li YG,et al."Synthesis and characterization of fluoro-substituted beta-enaminoketonato titanium complexes and their catalytic behavior of regioselective ethylene/cyclopentadiene copolymerization".chinese journal of polymer science 31.4(2013):574-582. |
入库方式： OAI收割
来源：长春应用化学研究所
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