Highly stereospecific polymerization of isoprene with homogeneous binary Ziegler-Natta catalysts based on NCN-pincer neodymium precursor
文献类型：期刊论文
| 作者 | Liu DongTao1,2,3; Cui DongMei1,2; Gao Wei4 |
| 刊名 | SCIENCE CHINA-CHEMISTRY
 |
| 出版日期 | 2010-08-01 |
| 卷号 | 53期号:8页码:1641-1645 |
| 关键词 | Neodymium Ncn-pincer Complex Polyisoprene Cis-1 4 Selectivity |
| ISSN号 | 1674-7291 |
| DOI | 10.1007/s11426-010-4041-9 |
| 英文摘要 | The aryldiimine NCN-pincer stabilized neodymium dichloride combined with aluminum alkyls established a new type of homogeneous binary neutral Ziegler-Natta catalyst system. This system exhibited high activity and high cis-1,4 selectivity for the polymerization of isoprene (T(p) = 20 degrees C, 98.2%; T(p) = -20 degrees C, > 99%). Such catalytic performances remained under a broad range of polymerization temperatures and monomer-to-neodymium ratios (from 500 to 8000), reaching high number-average molecular weight (M(n) = 1582 kg/mol) and relatively narrow molecular weight distribution (PDI = 1.68), which was, however, influenced by the amount and bulkiness of aluminum alkyls. Dynamic investigation of the polymerization was performed, which showed the number-average molecular weight of the resultant polyisoprene had an almost linear correlation with the conversion, suggesting, in some degree, the polymerization with this catalytic system was controllable. |
| 语种 | 英语 |
| WOS记录号 | WOS:000281403400005 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/68733]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Cui DongMei |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, Changchun 130022, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China 4.Jilin Univ, Sch Chem, Changchun 130012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu DongTao,Cui DongMei,Gao Wei. Highly stereospecific polymerization of isoprene with homogeneous binary Ziegler-Natta catalysts based on NCN-pincer neodymium precursor[J]. SCIENCE CHINA-CHEMISTRY,2010,53(8):1641-1645. |
| APA | Liu DongTao,Cui DongMei,&Gao Wei.(2010).Highly stereospecific polymerization of isoprene with homogeneous binary Ziegler-Natta catalysts based on NCN-pincer neodymium precursor.SCIENCE CHINA-CHEMISTRY,53(8),1641-1645. |
| MLA | Liu DongTao,et al."Highly stereospecific polymerization of isoprene with homogeneous binary Ziegler-Natta catalysts based on NCN-pincer neodymium precursor".SCIENCE CHINA-CHEMISTRY 53.8(2010):1641-1645. |
入库方式： OAI收割
来源：化学研究所
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