Addition Polymerisation

• Because alkenes are unsaturated , they are useful for making other molecules , especially polymers ( long chain molecules )
• Polymers are long chain molecules
• Many monomers (small molecules with double bonds) can join together to form polymers - This is called addition polymerisation
• The materials commonly called plastics are all synthetic (man made) polymers made from addition polymerisation
• Give examples of polymers made in addition polymerisation reaction?

  Polyethene and Polypropene