Which of the following is not suitable for the polymerisation of ethene to form high-density polythene?
Answer & explanation
Correct answer: option 2
High density polymer (HDP) is formed when polymerisation of C2H4 takes place through addition in a hydrocarbon solvent with Ziegler-Natta catalyst at temperature of 333-343K and under a pressure of 6-7 atmospheres. Temperatures and pressure higher than this will favour the formation of LDP.