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题名: Dinuclear chloroneodymium quinolinylcarboxylates: The molecular structures affected by water and the catalytic behavior toward isoprene polymerization
作者: Zhang, Wenjuan1, 3; Qian, Lin1; He, Lixia2; Qian, Yongqiang1; Wang, Jiye2; Wang, Zhonghua1; Lin, Qingju2; Hao, Xiang1; Flisak, Zygmunt1, 4; Sun, Wen-Hua1
关键词: Neodymium quinolinylcarboxylate chlorides ; Steric polymerization ; Polyisoprene
刊名: INORGANICA CHIMICA ACTA
发表日期: 2016-11-01
卷: 453, 页:589-595
收录类别: SCI
英文摘要: A series of dinuclear chloroneodymium quinolinylcarboxylate compounds was synthesized and characterized. The nature and importance of metal-organic aggregations have been considered as an important factor regarding the molecular structure and catalytic performance. The neodymium center in all the title compounds exhibits the coordination numbers of 8. Cage aggregation was observed in the solid state, and the cyclic arrangement was achieved when water molecules were incorporated into the structure. Upon the activation with Al(i-Bu)(3), all the title neodymium compounds form the efficient catalysts for isoprene polymerization. The catalytic activities are not strongly affected by the molecular aggregation of the pre catalysts in the solid state, which indicates that the dissociation into mononuclear species takes place in the homogeneous medium. The resultant polyisoprenes exhibit high contents of the cis-1,4 fraction and high molecular weight. (C) 2016 Elsevier B.V. All rights reserved.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35700
Appears in Collections:工程塑料实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Chem, Key Lab Engn Plast, Beijing 100190, Peoples R China
2.Qingdao Yikesi New Mat Co LTD, Qingdao 266604, Peoples R China
3.Beijing Inst Fash Technol, Sch Mat Sci & Engn, Beijing 100029, Peoples R China
4.Opole Univ, Fac Chem, Oleska 48, PL-45052 Opole, Poland
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