Aluminoxane
From Wikipedia, the free encyclopedia
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).
[edit] References
 |
This article does not cite any references or sources. (February 2008) Please help improve this article by adding citations to reliable sources. Unverifiable material may be challenged and removed. |
 |
This inorganic compound-related article is a stub. You can help Wikipedia by expanding it. |
