| 有机-无机复合载体茂锆催化剂的制备及乙烯聚合 |
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| 引用本文： | 郭玉,张学全,董为民. 有机-无机复合载体茂锆催化剂的制备及乙烯聚合[J]. 高分子学报, 2006, 0(6): 800-803 |
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| 作者姓名： | 郭玉 张学全 董为民 |
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| 作者单位： | 1. 中国科学院长春应用化学研究所高分子工程实验室,长春,130022;中国科学院研究生院,北京,100039
2. 中国科学院长春应用化学研究所高分子工程实验室,长春,130022 |
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| 摘 要： | 合成了组成为聚(4-乙烯基吡啶)-硅胶(SAV)的有机-无机复合载体茂锆催化剂,并用固体13C-NMR谱、元素分析(EA)、光电子能谱(XPS)等方法进行了表征.发现由SAV负载的茂锆催化剂可在相对较低的甲基铝氧烷(Al/Zr=600)用量下聚合乙烯.其活性(1.12×103kg PE/mol Zr.h)远高于SiO2负载的茂锆催化剂(0.22×103kg PE/mol Zr.h).
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| 关 键 词： | 复合载体 茂金属催化剂 乙烯聚合 聚乙烯 |
| 收稿时间： | 2005-04-15 |
| 修稿时间： | 2005-06-13 |
SYNTHESIS OF ORGANIC-INORGANIC HYBRID SUPPORTED ZIRCONOCENE CATALYST AND ITS CATALYSIS ON ETHYLENE POLYMERIZATION |
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| GUO Yu,ZHANG Xuequan,DONG Weimin. SYNTHESIS OF ORGANIC-INORGANIC HYBRID SUPPORTED ZIRCONOCENE CATALYST AND ITS CATALYSIS ON ETHYLENE POLYMERIZATION[J]. Acta Polymerica Sinica, 2006, 0(6): 800-803 |
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| Authors: | GUO Yu ZHANG Xuequan DONG Weimin |
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| Abstract: | Organic-inorganic hybrid(SAV) supported zirconocene was synthesized and its catalysis on ethylene polymerization was examined.The SAV was synthesized by copolymerization of 4-vinylpyridine with vinyl silica monomer(SA),which was modified by reacting silica with allyltrimethoxysilane(APS).After treated by MAO,the SAV was reacted with Cp_2ZrCl_2 to form organic-inorganic hybrid supported metallocene.The chemical structure and the composition of SA and SAV have been characterized by solid-state()~(13)C_NMR,XPS,and elemental analysis(EA).The SAV supported zirconocene catalyst was effective in ethylene polymerization at a relatively low MAO level(Al/Zr = 600) giving higher activity than that supported by SiO_2. |
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| Keywords: | Organic-inorganic hybrid Zirconocene Ethylene polymerization Polyethylene |
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