Why the synthesis of polyolefins with Ziegler-Natta catalyst needs high pressure over 1 atm and what happens at low pressure under 1 atm?

I know that the industry produces polyolefins (PO) with ZN catalysts under high pressure over 1 atm (actually around 3 atm). I am curious about the reason. My guess is that MW, PDI, and...

04 April 2017 9,851 2 View