Polymers are easily made and moulded. What is their future as waste piles up in landfill?
1. Where do we get plastics from? Which fractions are plastics made from?
Hint: Draw a diagram, internet research for pictures of oil refinery
2. Explain the chemistry of cracking.
Keywords: alkane, alkene, bonds, polymerisation
3. Explain polymerisation.
Keywords: double bonds, ethene, polyethene, catalyst
4. Why are these molecules so flexible?
5. Why are the molecules cooled down? Draw a diagram if possible.
6. List a few uses.
7. List a few properties of plastics.
8. What is difference between thermoplastics and thermosets?
9. What can you make from polythene? Does it have limitations?
10. What happens if your process it? Can you change its properties? How?
11. List and discuss a few environmental issues. What can we do? What shouldn’t we do?
12. Discuss Plastic recycling. Which type is best??
Tagged under: BBC,Short,Circuit,Polymers
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