| Transition metal complexes bearing 2,6-bis(imino)pyridyl:Synthesis, structure, ethylene polymerization/oligomerization studies |
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| 作者姓名： | SU Biyun ZHAO Jianshe & SUN Wenhua |
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| 作者单位： | SU Biyun，ZHAO Jianshe & SUN Wenhua Department of Chemistry，Northwest University，Xi'an 710069，China; State Key Laboratory of Engineering Plastics and Center for Molecular Science，Institute of Chemistry，Chinese Academy of Sciences，Beijing 100080，China |
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| 基金项目： | the Chinese Academy of Sciences，the National Natural Science Foundation of China，国家重点基础研究发展计划(973计划)，the Key Laboratory Research and Es-tablishment Program of Shaanxi Education Section，山西省自然科学基金 |
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| 摘 要： | A series of new complexes {2,6-bis1-((2-methyl-4-methoxyphenyl)imino)ethyl]pyri-dine}MCI2 M=Fe(Ⅱ) (2), Co(Ⅱ) (3), Ni(Ⅱ) (4), Cu(Ⅱ) (5), Zn(Ⅱ) (6)] have been synthesized. At 25℃, using 500 equiv of methylaluminoxane (MAO), the activities of Fe(Ⅱ), Co(Ⅱ) catalysts can reach 4.02×106 g/mol-Fehatm for ethylene polymerization and 3.98×105 g/mol-Cohatm for ethylene oligomerization. The effects of polymerization conditions such as reaction temperature, Al/M molar ratio and time on the activity of catalyst have been explored.
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Transition metal complexes bearing 2,6-bis(imino)pyridyl:Synthesis, structure, ethylene polymerization/oligomerization studies |
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| SU Biyun,ZHAO Jianshe & SUN Wenhua.Transition metal complexes bearing 2,6-bis(imino)pyridyl:Synthesis, structure, ethylene polymerization/oligomerization studies[J].Science in China(Chemistry),2005,48(Z1). |
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| Authors: | SU Biyun ZHAO Jianshe SUN Wenhua |
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| Institution: | 1. Department of Chemistry, Northwest University, Xi'an 710069, China
2. State Key Laboratory of Engineering Plastics and Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences,Beijing 100080, China |
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| Abstract: | A series of new complexes {2,6-bis1-((2-methyl-4-methoxyphenyl)imino)ethyl]pyridine}MCI2 M=Fe(Ⅱ) (2), Co(Ⅱ) (3), Ni(Ⅱ) (4), Cu(Ⅱ) (5), Zn(Ⅱ) (6)] have been synthesized. At 25℃, using 500 equiv of methylaluminoxane (MAO), the activities of Fe(Ⅱ), Co(Ⅱ) catalysts can ethylene oligomerization. The effects of polymerization conditions such as reaction temperature,AI/M molar ratio and time on the activity of catalyst have been explored. |
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| Keywords: | Bis(imino)pyridine transition metal complex ethylene polymerization/oligomerization catalytic activity |
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