Identify catalyst used in manufacturing of HDP.

Identify catalyst used in manufacturing of HDP.
  1. Zieglar - Natta
  2. Peroxides
  3. Lindlar's
  4. Magnesium oxide

Solution

HDP means high density polyethylene. It is a linear polymer with high density due to close packing. HDP is obtained by polymerization of ethane in presence of Zieglar-Natta catalyst which is a combination of triethyl aluminium with titanium tetrachloride at a temperature of $333 \mathrm{~K}$ to $343 \mathrm{~K}$ and a pressure of 6-7 $\mathrm{atm}$.

Asked in: MHT CET 2021 (23 Sep Shift 2)

Practice more Introduction to Polymer Chemistry questions on Aicharya