| 2-AMINOMETHYLPYRIDINE NICKEL(Ⅱ) COMPLEXES—SYNTHESIS,MOLECULAR STRUCTURE AND CATALYSIS OF ETHYLENE POLYMERIZATION |
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| 引用本文： | 伍青.2-AMINOMETHYLPYRIDINE NICKEL(Ⅱ) COMPLEXES—SYNTHESIS,MOLECULAR STRUCTURE AND CATALYSIS OF ETHYLENE POLYMERIZATION[J].高分子科学,2008(5). |
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| 作者姓名： | 伍青 |
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| 作者单位： | Institute of |
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| 基金项目： | the National Natural Science Foundation of China(Nos.20674097,20734004);; the Ministry of Education of China(Foundation for Ph.D.Training). |
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| 摘 要： | A series of new nickel(Ⅱ)complexes with 2-aminomethylpyridine ligands,(2-PyCH_2NHAr)_2NiBr_2(Ar=2,6- dimethylphenyl 2a;2,6-diisopropylphenyl 2b,2,6-difluorophenyl 2c),have been synthesized and used as catalyst precursors for ethylene polymerization in the presence of methylaluminoxane(MAO).The catalysts containing ortho-alkyl-substituents afford high molecular weight branched polyethylenes as well as a certain amount of oligomers.Enhancing the steric bulk of the alkyl substituent of the catalyst resulted...
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| 关 键 词： | 2-Aminomethyipyridine Nickel（Ⅱ）complex Catalyst Ethylene polymerization Oligomer. |
2-AMINOMETHYLPYRIDINE NICKEL(Ⅱ) COMPLEXES—SYNTHESIS,MOLECULAR STRUCTURE AND CATALYSIS OF ETHYLENE POLYMERIZATION |
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| Zeng-fang Huang Hai-yang Gao Ling Zhang Qing Wu.2-AMINOMETHYLPYRIDINE NICKEL(Ⅱ) COMPLEXES—SYNTHESIS,MOLECULAR STRUCTURE AND CATALYSIS OF ETHYLENE POLYMERIZATION[J].Chinese Journal of Polymer Science,2008(5). |
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| Authors: | Zeng-fang Huang Hai-yang Gao Ling Zhang Qing Wu |
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| Institution: | Zeng-fang Huang Hai-yang Gao Ling Zhang Qing Wu~ |
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| Abstract: | A series of new nickel(Ⅱ)complexes with 2-aminomethylpyridine ligands,(2-PyCH_2NHAr)_2NiBr_2(Ar=2,6- dimethylphenyl 2a;2,6-diisopropylphenyl 2b,2,6-difluorophenyl 2c),have been synthesized and used as catalyst precursors for ethylene polymerization in the presence of methylaluminoxane(MAO).The catalysts containing ortho-alkyl-substituents afford high molecular weight branched polyethylenes as well as a certain amount of oligomers.Enhancing the steric bulk of the alkyl substituent of the catalyst resulted in... |
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