引用本文:
Lei Zhang, Xu Feng Ni, Wei Lin Sun, Zhi Quan Shen. Polymerization of isoprene catalyzed by neodymium heterocyclic Schiff base complex[J]. Chinese Chemical Letters,
2008, 19(6): 734-738.
doi:
10.1016/j.cclet.2008.03.007
Citation: Lei Zhang, Xu Feng Ni, Wei Lin Sun, Zhi Quan Shen. Polymerization of isoprene catalyzed by neodymium heterocyclic Schiff base complex[J]. Chinese Chemical Letters, 2008, 19(6): 734-738. doi: 10.1016/j.cclet.2008.03.007
Citation: Lei Zhang, Xu Feng Ni, Wei Lin Sun, Zhi Quan Shen. Polymerization of isoprene catalyzed by neodymium heterocyclic Schiff base complex[J]. Chinese Chemical Letters, 2008, 19(6): 734-738. doi: 10.1016/j.cclet.2008.03.007
Polymerization of isoprene catalyzed by neodymium heterocyclic Schiff base complex
摘要:
Neodymium-based heterocyclic Schiff base complex was prepared and applied for the coordination polymerization of isoprene. This complex polymerized isoprene to afford products featuring high cis-1,4 stereospecificity (ca. 95%) and high molecular weight (ca. 105) in the presence of the triisobutyl aluminium (AliBu3) as cocatalyst. The microstructure of obtained polyisoprene was investigated by FTIR, 1H NMR. Two different kinds of active centers in the catalyst system were examined by GPC method.
English
Polymerization of isoprene catalyzed by neodymium heterocyclic Schiff base complex
Abstract:
Neodymium-based heterocyclic Schiff base complex was prepared and applied for the coordination polymerization of isoprene. This complex polymerized isoprene to afford products featuring high cis-1,4 stereospecificity (ca. 95%) and high molecular weight (ca. 105) in the presence of the triisobutyl aluminium (AliBu3) as cocatalyst. The microstructure of obtained polyisoprene was investigated by FTIR, 1H NMR. Two different kinds of active centers in the catalyst system were examined by GPC method.
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Key words:
- Heterocyclic Schiff base
- / Neodymium complex
- / Isoprene
- / Coordination polymerization
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