Question

The catalyst used in the manufacture of polyethylene is a mixture of

• A. Ti, Al(CH$_3$)$_3$
• B. Ti, CH$_3$MgBr
• C. TiCl$_3$, Si(CH$_3$)$_4$
• D. TiCl$_4$, Al(CH$_3$)$_3$

Hint:

Ziegler-Natta catalysts allow control over polymer stereochemistry during polymerization.

Answer 1

The Correct Option is D

Ziegler-Natta catalyst used for polyethylene production is typically a mixture of titanium compound (like TiCl$_4$) and an organoaluminium compound (like Al(CH$_3$)$_3$). These provide sites for controlled polymerization of ethylene.