Chemistry

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Across
  1. 5. a plastic material obtained by polymerisation of ethylene
  2. 6. plastic that can be moulded again and again
  3. 8. plastic that can be moulded only once
  4. 9. a synthetic Fibre obtained by the polymerisation of acrilonitrite
Down
  1. 1. the process of linking monomers to form polymer
  2. 2. a synthetic Fibre that can be moulded easily
  3. 3. First synthetic Fibre
  4. 4. Fibres made by human beings
  5. 5. formed by a chain of monomers
  6. 7. Each unit of polymer