New titanium complexes with two beta-enaminoketonato chelate ligands: Syntheses, structures, and olefin polymerization activities
文献类型：期刊论文
| 作者 | Li XF ; Dai K ; Ye WP ; Pan L ; Li YS |
| 刊名 | organometallics
 |
| 出版日期 | 2004 |
| 卷号 | 23期号:6页码:1223-1230 |
| 关键词 | SYNDIOSPECIFIC LIVING POLYMERIZATION BLOCK-COPOLYMERS ETHYLENE POLYMERIZATION METALLOCENE-CATALYSTS ZIRCONIUM COMPLEXES DIAMIDO LIGAND 1-HEXENE NORBORNENE PROPYLENE METHYLALUMINOXANE |
| ISSN号 | 0276-7333 |
| 通讯作者 | li ys |
| 中文摘要 | new titanium complexes with two nonsymmetric bidentate beta-enaminoketonato (n,o) ligands (4a-e), [(ph)nc(r-2)c(h)c(r-1)o](2)ticl2, have been synthesized. x-ray crystal structure reveals that complex 4a has a c-2-symmetric conformation with a distorted octahedral geometry around the titanium center. with modified methylaluminoxane (mmao) as a cocatalyst, complexes 4a-e are active catalysts for ethylene polymerization at room temperature, producing high molecular weight polyethylenes bearing linear structures. the 4a,b/mmao catalyst systems exhibit the characteristics of a quasi-living polymerization of ethylene, producing polyethylenes with narrow molecular weight distributions. moreover, the 4a-d/mmao catalyst systems are also capable of promoting the quasi-living copolymerization of ethylene with norbornene at room temperature, yielding high molecular weight alternating copolymers with narrow molecular weight distributions. the quasi-living nature of the catalysts allows the synthesis of new a-b polyethylene-block-poly(ethylene-conorbornene) diblock copolymer. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000220093200012 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/15287]  |
| 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 XF,Dai K,Ye WP,et al. New titanium complexes with two beta-enaminoketonato chelate ligands: Syntheses, structures, and olefin polymerization activities[J]. organometallics,2004,23(6):1223-1230. |
| APA | Li XF,Dai K,Ye WP,Pan L,&Li YS.(2004).New titanium complexes with two beta-enaminoketonato chelate ligands: Syntheses, structures, and olefin polymerization activities.organometallics,23(6),1223-1230. |
| MLA | Li XF,et al."New titanium complexes with two beta-enaminoketonato chelate ligands: Syntheses, structures, and olefin polymerization activities".organometallics 23.6(2004):1223-1230. |
入库方式： OAI收割
来源：长春应用化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。