The Polymerisation of Ethene.
The double bond in an alkene (like ethene) canbe broken open and joined to other molecules(see the chemistry of polymerisation)
. A molecule of ethene can be joined to another moleculeof ethene. In the process, the second ethene moleculehas its double bond broken, and this may be added toa third molecule of ethene, and so on. Manyethene molecules can be joined together to form a polymer.
The polymer is called poly(ethene) because it is madefrom ethene. This is an example of addition polymerisation.
Poly(ethene) is commonly called polythene.Polythene is an ICI trademark for poly(ethene).
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