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Which of the following is not suitable for the polymerisation of ethene to form high-density polythene?

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in Chemistry – Class 12 by (188k points)
Which of the following is not suitable for the polymerisation of ethene to form high-density polythene?

(a) Presence of Ziegler-Natta catalyst

(b) Temperature of 500K

(c) Pressure of 7 atmospheres

(d) Hydrocarbon solvent

The question was asked in final exam.

I would like to ask this question from Types of Polymerisation Reactions topic in section Polymers of Chemistry – Class 12

1 Answer

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Best answer
Correct choice is (b) Temperature of 500K

To elaborate: 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.

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