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An investigation of the effect of chain length on stereo-regulation with C2 symmetric metallocene catalysts

Amer, Ismael (Stellenbosch : University of Stellenbosch, 2006-12)

This study concerns the polymerization of propylene both in the presence and absence of molecular hydrogen. The percentage of hydrogen used as a terminating agent in the polymerization reactions was varied from 0.1 wt% ...
Solution isomerization of commercial C2-symmetric metallocene catalysts

Soltan, Omar (Stellenbosch : University of Stellenbosch, 2006-03)

This study concerns the investigation of the isomerization of different metallocene catalysts in solution, and the effects thereof on the microstructure of polypropylenes prepared with these catalysts. Two C2 symmetric ...