1. Polymer Products

2. Polymer: Low-density poly(ethene) (LDPE)
Plastic bag
Polymer: Low-density poly(ethene) (LDPE)
Polymerisation at high temperature and pressure

3. Polymer: High-density poly(ethene) (HDPE)
Plastic bottle
Polymer: High-density poly(ethene) (HDPE)
Catalyst allows polymerisation to occur at lower temperature and pressure

4. Polymer: isotactic poly(propene)
Plastic crate
Polymer: isotactic poly(propene)
Close-packed chains produce strong polymer

5. Polymer: atactic poly(propene)
Road paint (lines)
Polymer: atactic poly(propene)
Loosely-packed chains produce softer polymer

6. Polymer: poly(vinyl chloride) (PVC) or low-density poly(ethene) (LDPE)
Cling film
Polymer: poly(vinyl chloride) (PVC) or low-density poly(ethene) (LDPE)
Plasticiser and extremely thin sheets produce stretchy, clingy material

7. Double-glazed window edges Polymer: poly(chloroethene) (PVC)
No plasticiser produces a rigid polymer

8. Electrical cable insulation Polymer: poly(chloroethene) (PVC)
Addition of plasticiser produces a flexible polymer

9. Poly(tetrafluoroethene) (PTFE)
Non-stick pan
Poly(tetrafluoroethene) (PTFE)
Carbon-fluorine bonds create useful non-stick property