Properties of Polymers

• What do the properties of a polymer depend on?

  What it is made from (i.e. what monomer was used) - And the conditions (e.g. temperature and catalyst) under which it was made
• Low density polyethene (LDPE) and high density polyethene (HDPE) are both made from the monomer ethene
• Why do low density polyethene and high density polyethene have different properties?

  Different catalysts and reaction conditions are used to make them
• What is low density polyethene used to make?

  Carrier bags
• What is high density polyethene used to make?

  Plastic bottles