Chemicals from Oil

1
Chemicals from Oil

• PLASTICS

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Plastics

• When oil is cracked ethene is often made.
• Ethene is a very useful molecule as it is the
  starting material for making many plastics.

3
Plastics

• Plastics are huge molecules.
• They are usually made from chains of thousands of
  atoms.
• These long chains are called polymers

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Plastics

• Polymers are made from joining thousands of small
  molecules called monomers together.

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Plastics

• Ethene is a monomer that joins up to form
  poly(ethene).
• This reaction is called polymerisation

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Plastics

• Different plastics can be made from different
  monomers.

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Uses of Different Plastics

• Polyethene
• Plastic bags
• Rubber ducks
• Washing up bowl
• Plastic dustbins

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Uses of Different Plastics

• Poly(styrene)
• Drink containers
• Packaging
• Ceiling tiles
• Yoghurt pots

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Uses of Different Plastics

• Poly(vinyl chloride) PVC
• Vinyl records
• Drainpipes
• Window frames
• Plastic rain coat

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Uses of Different Plastics

• Poly(propene)
• Crates
• Fishing nets

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Uses of Different Plastics

• Nylon
• Toothbrush
• Sports wear
• tights

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Monomer Polymer ethene poly(ethene) styrene
poly(styrene) vinyl chloride poly(vinyl
chloride) PVC