Highly efficient ethylene/norbornene copolymerization by o-Di(phenyl)phosphanylphenolate-based half-titanocene complexes
文献类型：期刊论文
| 作者 | Tang XY ; Wang YX ; Li BX ; Liu JY ; Li YS |
| 刊名 | journal of polymer science part a-polymer chemistry
 |
| 出版日期 | 2013 |
| 卷号 | 51期号:7页码:1585-1594 |
| 关键词 | ETHENE-NORBORNENE COPOLYMERIZATION OLEFIN POLYMERIZATION CATALYSTS CONSTRAINED-GEOMETRY CATALYSTS FOCK-SLATER CALCULATIONS ZIEGLER-NATTA CATALYSIS IMINE CHELATE LIGANDS C-13 NMR-SPECTRA ETHYLENE POLYMERIZATION TITANIUM COMPLEXES SANDWICH CATALYSTS |
| ISSN号 | 0887-624x |
| 通讯作者 | liu jy |
| 中文摘要 | a series of o-di(phenyl)phosphanylphenolate-based half-titanocene complexes cpticl2[o-2-r1-4-r2-6-(ph2p)c6h2] (cp = c5h5, 2a: r1 = r2 = h; 2b: r1 = f, r2 = h; 2c: r1 = ph, r2 = h; 2d: r1 = sime3, r2 = h; 2e: r1 = tbu, r2 = h; 2f: r1 = r2 = tbu) have been synthesized in high yields (6587%) by treating cpticl3 with 1.0 equiv of the deprotonated ligands in thf. the 1h and 31p nmr spectra indicated that the phosphorus is not coordinated to titanium in complexes 2ac, but is coordinated to titanium in complexes 2df. structures for 2cf were further confirmed by x-ray crystallography. complex 2c is essentially a four-coordinate tetrahedral geometry, whereas complexes 2d-f adopt five-coordinate distorted squarepyramid geometry around the titanium center. all complexes exhibited low to moderate activities toward homopolymerization of ethylene. excitingly, they displayed excellent ability to copolymerize ethylene with norbornene, and catalytic activity was more than 100 times larger than that of ethylene homopolymerization in the case of ph3cb(c6f5)4/ibu3al as cocatalyst, affording the copolymers with high comonomer incorporations. moreover, dft calculations study had been performed to shed light on the active species and the fundamental role of nbe in improving the catalytic activity. (c) 2013 wiley periodicals, inc. j. polym. sci., part a: polym. chem. 2013, 51, 1585-1594 |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000315495100011 |
| 公开日期 | 2014-04-16 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/49955]  |
| 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 | Tang XY,Wang YX,Li BX,et al. Highly efficient ethylene/norbornene copolymerization by o-Di(phenyl)phosphanylphenolate-based half-titanocene complexes[J]. journal of polymer science part a-polymer chemistry,2013,51(7):1585-1594. |
| APA | Tang XY,Wang YX,Li BX,Liu JY,&Li YS.(2013).Highly efficient ethylene/norbornene copolymerization by o-Di(phenyl)phosphanylphenolate-based half-titanocene complexes.journal of polymer science part a-polymer chemistry,51(7),1585-1594. |
| MLA | Tang XY,et al."Highly efficient ethylene/norbornene copolymerization by o-Di(phenyl)phosphanylphenolate-based half-titanocene complexes".journal of polymer science part a-polymer chemistry 51.7(2013):1585-1594. |
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。