Everything about Kaminsky Catalyst totally explained
A
Kaminsky is a
catalytic system for
olefin polymerization discovered by
Walter Kaminsky and coworkers in 1980. Kaminsky catalysts are based on
metallocenes of group 4
transition metals with
methylaluminoxane (MAO). These catalysts are a kind of
Ziegler-Natta catalyst, but they're homogeneous and show extremely high activity for polymerization of olefins such as
ethylene,
propylene, and
styrene. In addition, the use of
chiral metallocenes that have bridged cyclopentadienyl rings has made possible highly stereospecific (or stereoregular) polymerization of α-olefins. For example, by using metallocene
1 for polymerization of propylene,
atactic polypropylene is obtained, while
C2 symmetric metallocene
2 and
Cs symmetric metallocene
3 catalytic systems produce
isotactic polymer and
syndiotactic macromolecule, respectively.
Even today, Kaminsky catalysts are very attractive from the industrial,
organometallic, and
polymer science points of view, and they're studied to improve their activity and to achieve high
tacticity and high
molecular weight of the produced polymers.
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