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4 marksMacromolecules

CAPE Chemistry Unit 2 · 2006 · Paper 2 · Question 8(a)

PVC (polyvinylchloride) and PET (polyethyleneterephthalate) are two organic synthetic polymers with varied applications.

Give ONE use for EACH of PVC and PET and suggest why these polymers do not respond to natural degradative processes.

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Other parts of this question

  1. 8(b)(i)Suggest the meaning of the term 'depolymerization'.[1 mark]
  2. 8(b)(ii)State TWO chemicals that could be used in the depolymerization of PET and explain the chemical process occurring.[5 marks]
  3. 8(c)(i)What would be a suitable solvent for this process?[1 mark]
  4. 8(c)(ii)Suggest a reason for the use of fine chips.[1 mark]
  5. 8(c)(iii)Give TWO safety precautions that should be enforced during this recycling process.[2 marks]
  6. 8(c)(iv)Suggest a use or property of any clothing produced from these recycled fibres.[1 mark]
  7. 8(d)Discuss the advantages and disadvantages of disposing of PVC material via incineration.[5 marks]

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