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First exams 2025

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Disposal of Polymers (CIE A Level Chemistry)

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Philippa

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Philippa

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Chemistry

Disposal of Polymers

  • Poly(alkenes) are extremely important in everyday life, such as their use as plastics
  • However, the disposal of these polymers is problematic
  • Poly(alkenes) are very large alkane molecules which are unreactive and therefore do not undergo any chemical reactions; they are resistant to chemical attack
  • Due to their unreactivity, polymers are non-biodegradable and take up to hundreds of years to decompose when dumped in landfill sites
    • Throwing away poly(alkenes) therefore causes long-term pollution of the environment

  • Burning the polymers results in harmful combustion products which again cause the pollution of the environment

Exam Tip

The disposal of polymers is a challenge due to their unreactivity, their non-biodegradability, and the formation of harmful combustion products when burnt

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Philippa

Author: Philippa

Philippa has worked as a GCSE and A level chemistry teacher and tutor for over thirteen years. She studied chemistry and sport science at Loughborough University graduating in 2007 having also completed her PGCE in science. Throughout her time as a teacher she was incharge of a boarding house for five years and coached many teams in a variety of sports. When not producing resources with the chemistry team, Philippa enjoys being active outside with her young family and is a very keen gardener.