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Olefin polymerization metallocene catalyst
The metallocene catalysts for olefin polymerization have been at the forefront of research in the fields of chemical catalysis and polymer materials since their discovery in the 1950s and the foundation laid by Kaminsky and others in the 1980s. The catalytic system typically consists of metallocene compounds, co-catalysts (MAO, MMAO), and silica supports. The catalytic polymerization mechanism involves the interaction between metallocenes and co-catalysts to form cationic catalytic active centers. Compared to traditional Ziegler-Natta catalysts: 1) they exhibit extremely high catalytic activity (1g of zirconium homogeneous metallocene catalyst can catalyze 100 tons of ethylene polymerization, and 1g of titanium metallocene catalyst can catalyze the synthesis of 7700kg of polystyrene (PS); 2) they possess a single active center, allowing precise control over the relative molecular mass of the polymer, molecular weight distribution, co-monomer content, and its distribution and crystalline structure in the main chain; 3) they demonstrate excellent catalytic copolymerization capabilities, enabling most co-monomers to copolymerize with ethylene, leading to the development of many new types of polyolefin materials, such as α-olefin monomer polymerization and isotactic polypropylene (PP).
Anhui Botai has utilized its own produced trimethylaluminum as raw material to conquer the synthesis process technology of methylaluminoxane (MAO) and has achieved mass production. The product performance is comparable to that of top international manufacturers, completely breaking the monopoly of foreign enterprises, achieving import substitution, and filling the domestic gap.
Olefin polymerization metallocene catalyst
Focus on the research and development and industrialization of new electronic material precursors, and become the leader of localization of advanced electronic materials.
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