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 DT ; Cui DM ; Gao W |
刊名 | science china-chemistry
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出版日期 | 2010 |
卷号 | 53期号:8页码:1641-1645 |
关键词 | LANTHANIDE COORDINATION CATALYSTS BUTADIENE COPOLYMERIZATION DIENES SYSTEM |
ISSN号 | 1674-7291 |
通讯作者 | cui dm |
中文摘要 | 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. |
收录类别 | SCI收录期刊论文 |
语种 | 英语 |
WOS记录号 | WOS:000281403400005 |
公开日期 | 2012-04-26 |
源URL | [http://ir.ciac.jl.cn/handle/322003/43487] ![]() |
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 | Liu DT,Cui DM,Gao W. 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 DT,Cui DM,&Gao W.(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 DT,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:长春应用化学研究所
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