Question

Why the formation of a polymer like polyethene requires the presence of a catalyst 7​

Answer 1

Explanation:

Mixture of triethylaluminium & titanium tetrachloride (known as Zeigler-Natta catalyst) is used as a catalyst in the preparation of polyethylene.

Answer 2

Answer:

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Explanation:

Recall that the role of a catalyst is to provide an alternative pathway for a chemical reaction, which allows the reaction to proceed under milder conditions. ... The Ziegler-Natta Ti/Al catalysts are heterogeneous, which means that they are insoluble under the conditions of the polymerization reaction.