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aluminoxane
Aluminoxanes refer to compounds that are obtained by the partial hydrolysis of trialkylaluminium compounds. Aluminoxanes serve as activators for catalytic olefin polymerisation, such as the Ziegler-Natta catalyst. They also serve a function as scavenger for impurities (e.g. water) in reactions that are sensitive to these impurities. Examples of aluminoxanes include: * Triisobutylaluminoxane (TiBAO), formed by the hydrolysis of triisobutylaluminium * Methylaluminoxane (MAO), formed by the hydrolysis of trimethylaluminium The hydrolysis of trialkylaluminium compounds is a highly exothermic process, and the starting trialkylaluminium compounds are often pyrophoric (i.e. burns on contact with air). ==References==
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