CIE AS Chemistry

Revision Notes

Syllabus Edition

First teaching 2020

Last exams 2024

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3.8.2 Disposal of Polymers

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Disposal of Polymers

  • Though poly(alkenes)s are extremely important in everyday such as their use as plastics, 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 cause the 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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Fran studied for a BSc in Chemistry with Forensic Science, and since graduating taught A level Chemistry in the UK for over 11 years. She studied for an MBA in Senior Leadership, and has held a number of roles during her time in Education, including Head of Chemistry, Head of Science and most recently as an Assistant Headteacher. In this role, she used her passion for education to drive improvement and success for staff and students across a number of subjects in addition to Science, supporting them to achieve their full potential. Fran has co-written Science textbooks, delivered CPD for teachers, and worked as an examiner for a number of UK exam boards.