Abstract:
Zirconocene catalyzed olefin polymers have experienced radical attention owing to
their unmatched properties and wide applications.
Metallocene polyethylene (mPE) shows a narrow molecular weight distribution and
a very homogeneous copolymer distribution.
Kinetic model of the gas phase ethylene polymerization with silica supported
(dimethylsilylene)bis(η5–inden–1–ylidene)zirconium dichloride catalyst and MAO as
cocatalyst is proposed. Polymer molecular properties, viz. number average molecular
weight ( ), weight average molecular weight ( ), and polydispersity index (PDI)
are calculated using the method of moments. Kinetic parameters have been estimated
using differential evolution (DE) approach of optimization.