三氟化硼修饰载体负载茂金属催化乙烯聚合 |
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引用本文: | 张普玉,柴云,尹艳琴,王立. 三氟化硼修饰载体负载茂金属催化乙烯聚合[J]. 化学研究, 2003, 14(3): 21-23,67 |
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作者姓名: | 张普玉 柴云 尹艳琴 王立 |
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作者单位: | 1. 河南大学化学化工学院,河南,开封,475001 2. 浙江大学高分子系,浙江,杭州,310027 |
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基金项目: | 国家自然科学基金资助项目(No.20172045). |
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摘 要: | 用BF3对载体硅胶和氧化铝进行了表面修饰,考察了修饰的载体负载茂金属催化剂后催化乙烯聚合的特性.研究表明,用BF3修饰过的载体负载二氯二茂锆催化乙烯的聚合,聚合活性有较大提高,具有工业应用前景,并且提出了这一催化体系的负载机理.
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关 键 词: | 乙烯聚合 载体修饰 茂金属 催化剂 |
文章编号: | 1008-1011(2003)03-0021-03 |
Ethylene Polymerization Catalyzed by Metallocene Supported on BF3 Modified Carrier |
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Abstract: | Common supports such as SiO2, Al2O3 were modified by BF3. The modified carrier supported catalysts Cp2ZrCl2/BF3/SiO2(or Al2O3) were prepared and used for ethylene polymerization. Results show that the resultant supported catalysts are more active compared with the unmodified ones. The supporting mechanism was presented. |
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Keywords: | ethylene polymerization carrier modification metallocene catalyst |
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