综述了烷基铝对α-二亚胺镍催化体系在聚合反应中所产生的影响。甲基铝氧烷（MAO）以其较高的活化能力广泛运用于α-二亚胺镍等催化体系中。三甲基铝（TMA）、三异丁基铝（TiBA）等无氯烷基铝也都有一定的活化能力,但远不如MAO。二乙基氯化铝（DEAC）、倍半乙基氯化铝（EASC）等含氯烷基铝有较强的活化能力,甚至比MAO的活化作用强得多,其中EASC和α-二亚胺镍配合可以使乙烯的聚合速率高达3966 kg PE/（mol Ni.h）。
This paper reviewed the influence of alkylaluminum on（α-diimine） nickel catalysts during polymerization reactions.Methylaluminoxane（MAO） is widely used in（α-diimine） nickel catalysts due to its highly activation ability.Chlorine-free alkylaluminum cocatalysts like trimethylaluminum（TMA）,triisobutylaluminum（TiBA） and so on can also activate（α-diimine） nickel to a certain extent,but far from MAO.Chlorinated-alkylaluminum cocatalysts like diethylaluminum chlorine（DEAC）,ethylaluminum sesquichloride（EASC） and so on are highly effective activators,even much more effective than MAO.The productivities of ethylene polymerization is as high as 3966 kgPE/（mol Ni·h） when catalyzed by the system of EASC combined with（α-diimine） nickel.
参考文献
| [1] | Hideharu Mori;Masahiro Endo;Minoru Terano .Deviation of hydrogen response during propylene polymerization with various Ziegler-Natta catalysts[J].Journal of molecular catalysis, A. Chemical,1999(s1-2):211-220. |
| [2] | Fedushkin, IL;Skatova, AA;Lukoyanov, AN;Khvoinova, NM;Piskunov, AV;Nikipelov, AS;Fukin, GK;Lysenko, KA;Irran, E;Schumann, H .1,2-Bis(imino)acenaphthene complexes of molybdenum and nickel[J].Dalton transactions: An international journal of inorganic chemistry,2009(24):4689-4694. |
| [3] | Tempel DJ.;Huff RL.;White PS.;Brookhart M.;Johnson LK. .Mechanistic studies of Pd(II)-alpha-diimine-catalyzed olefin polymerizations[J].Journal of the American Chemical Society,2000(28):6686-6700. |
| [4] | Michalak A.;Ziegler T. .DFT studies on substituent effects in palladium-catalyzed olefin polymerization[J].Organometallics,2000(10):1850-1858. |
| [5] | Xiao, AG;Wang, L;Liu, QQ;Yu, HJ;Wang, JJ;Huo, J;Tan, QH;Ding, JH;Ding, WB;Amin, AM .A Novel Linear-Hyperbranched Multiblock Polyethylene Produced from Ethylene Monomer Alone via Chain Walking and Chain Shuttling Polymerization[J].Macromolecules,2009(6):1834-1837. |
| [6] | Liu, FS;Hu, HB;Xu, Y;Guo, LH;Zai, SB;Song, KM;Gao, HY;Zhang, L;Zhu, FM;Wu, Q .Thermostable alpha-Diimine Nickel(II) Catalyst for Ethylene Polymerization: Effects of the Substituted Backbone Structure on Catalytic Properties and Branching Structure of Polyethylene[J].Macromolecules,2009(20):7789-7796. |
| [7] | Mauler RS.;Vesccia DVV.;Simon LC.;de Souza RF. .Effect of the co-catalyst on the polymerization of ethylene and styrene by nickel-diimine complexes[J].Macromolecular rapid communications: Publishing the newsletters of the European Polymer Federation,2000(8):458-463. |
| [8] | Bijal Kottukkal Bahuleyan;Jae Min Oh;Deepak Chandran .Highly Efficient Supported Diimine Ni(II) and Iminopyridyl Fe(II) Catalysts for Ethylene Polymerizations[J].Topics in Catalysis,2010(7/10):500-509. |
| [9] | Yamamoto, K.;Ishihama, Y.;Sakata, K. .Preparation of bimodal HDPEs with metallocene on Cr-montmorillonite support[J].Journal of Polymer Science, Part A. Polymer Chemistry,2010(17):3722-3728. |
| [10] | Okada M;Nakayama Y;Shiono T .Synthesis of anilinonaphthoquinone-based nickel complexes and their application for olefin polymerization[J].Journal of Organometallic Chemistry,2007(23):5183-5189. |
| [11] | Song, DP;Ye, WP;Wang, YX;Liu, JY;Li, YS .Highly Active Neutral Nickel(II) Catalysts for Ethylene Polymerization Bearing Modified,beta-Ketoiminato Ligands[J].Organometallics,2009(19):5697-5704. |
| [12] | Vincenzo Busico .Metal-catalysed olefin polymerisation into the new millennium:a perspective outlook[J].Dalton transactions: An international journal of inorganic chemistry,2009(41):8794-8802. |
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