Copolymerization of ethylene with norbornene catalyzed by cationic rare earth metal fluorenyl functionalized N-heterocyclic carbene complexes
文献类型：期刊论文
| 作者 | Wang BL ; Tang T ; Li YS ; Cui DM |
| 刊名 | dalton transactions
 |
| 出版日期 | 2009 |
| 期号 | 41页码:8963-8969 |
| 关键词 | LANTHANIDE-ALKYL COMPLEXES BETA-DIKETIMINATO LIGANDS HALF-SANDWICH COMPLEXES AMINO-PHOSPHINE-LIGANDS C-13 NMR-SPECTRA ETHENE-NORBORNENE ISOPRENE POLYMERIZATION MECHANISTIC CONSIDERATIONS SELECTIVE POLYMERIZATION HYDROAMINATION CATALYSTS |
| ISSN号 | 1477-9226 |
| 通讯作者 | cui dm |
| 中文摘要 | rare earth metal bis(alkyl) complexes attached by fluorenyl modified n-heterocyclic carbene (nhc) (flu-nhc)ln(ch2sime3)(2) (flu-nhc = (c13h8ch2ch2(nchcchn)c6h2me3-2,4,6); ln = sc (2a); y (2b); ho (2c); lu (2d)), ((tbu)flu-nhc)ln(ch2sime3)(2) ((tbu)flu-nhc = 2,7-(bu2c13h6ch2ch2)-bu-t(nchcchn)c6h2me3-2,4,6; ln = sc (1a); lu (1d)) and attached by indenyl modified n-heterocyclic carbene (ind-nhc)ln(ch2sime3)(2) (ind-nhc = c9h6ch2ch2(nchcchn)c6h2me3-2,4,6; ln = sc (3a); lu (3d)), under the activation of (albu3)-bu-i and [ph3c][b(c6f5)(4)], showed varied catalytic activities toward homo- and copolymerization of ethylene and norbornene. among which the scandium complexes, in spite of ligand type, exhibited medium to high catalytic activity for ethylene polymerization (10(5) g mol(sc)(-1) h(-1) atm(-1)), but all were almost inert to norbornene polymerization. remarkably, higher activity was found for the copolymerization of ethylene and norbornene when using sc based catalytic systems, which reached up to 5 x 10(6) g mol(sc)(-1) h(-1) atm(-1) with 2a. the composition of the isolated copolymer was varying from random to alternating according to the feed ratio of the two monomers (r(e) = 4.1, r(nb) = 0.013). |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000270761900023 |
| 公开日期 | 2010-05-27 |
| 源URL | [http://202.98.16.49/handle/322003/12365]  |
| 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 | Wang BL,Tang T,Li YS,et al. Copolymerization of ethylene with norbornene catalyzed by cationic rare earth metal fluorenyl functionalized N-heterocyclic carbene complexes[J]. dalton transactions,2009(41):8963-8969. |
| APA | Wang BL,Tang T,Li YS,&Cui DM.(2009).Copolymerization of ethylene with norbornene catalyzed by cationic rare earth metal fluorenyl functionalized N-heterocyclic carbene complexes.dalton transactions(41),8963-8969. |
| MLA | Wang BL,et al."Copolymerization of ethylene with norbornene catalyzed by cationic rare earth metal fluorenyl functionalized N-heterocyclic carbene complexes".dalton transactions .41(2009):8963-8969. |
入库方式： OAI收割
来源：长春应用化学研究所
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