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Science

Useful chemicals from crude oil

Polymerisation

Some small molecules can join together to make very long molecules called polymers. This process is called polymerisation.

Many polymers are made from chemicals that are obtained from crude oil. For example, molecules of ethene join together to make poly(ethene), commonly known as polythene.

Ethene makes polyethene

By polymerising other small molecules, a wide variety of different polymers can be made. These synthetic materials have many uses.

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