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N4 Polymers and Novel Materials

N4 Polymers and Novel Materials. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 1. answer. What is a polymer ?. Large molecules formed by many small molecules called monomers joining together. 2. answer. SYNTHETIC means ….. ?. Man-made. 3.

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N4 Polymers and Novel Materials

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  1. N4 Polymers and Novel Materials 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Calderglen High School

  2. 1. answer What is a polymer? Large molecules formed by many small molecules called monomers joining together Calderglen High School

  3. 2. answer SYNTHETIC means …..? Man-made Calderglen High School

  4. 3. answer Give some examples of natural polymers Cotton Rubber Silk Wool Starch Cellulose Calderglen High School

  5. 4. answer Give some examples of synthetic polymers Nylon Polyethene (polythene) Polystyrene PVC Perspex Calderglen High School

  6. 5. answer How are polymers formed? The small monomers join together to form large polymers Calderglen High School

  7. 6. answer How are polymers named? The word ‘poly’ goes in front of the monomer name Calderglen High School

  8. 7. answer List some uses of ceramic materials Cooking pots Electrical insulator for powerlines Calderglen High School

  9. 8. answer What is special about the polymer hydrogel? What is it used for? Hydrogel – absorbs water – good for nappies and contact lenses Calderglen High School

  10. 9. answer What isPOLYMERISATION? The type of reaction in which many small molecules (monomers) join together to form polymers Calderglen High School

  11. 10. answer What is aTHERMOPLASTIC polymer? A thermoplastic polymer is one which softens on heating and can be reshaped Calderglen High School

  12. 11. answer Give some advantages of synthetic polymers Cheap, light weight, long lasting (durable/hard-wearing), insulators Calderglen High School

  13. 12. answer Why is polystyrene good for making drinking cups Polystyrene Non-conductor of heat, lightweight - good for hot drinks cups Calderglen High School

  14. 13. answer What danger is associated with burning plastics? Toxic / poisonous gases can be produced Calderglen High School

  15. 14. answer BIODEGRADABLE means ………. Decomposed (rots) naturally by living matter Calderglen High School

  16. 15. answer What type of plastic does not soften on heating? Thermosetting Calderglen High School

  17. 16. answer Propene (remove POLY from POLYPROPENE) What is the monomer for POLYPROPENE* Calderglen High School

  18. 17. answer Give some disadvantages of synthetic fibres? Don’t feel or look as good, finite, non-biodegradable (won’t rot), burn to give toxic fumes Calderglen High School

  19. 18. answer Give an example of a polymer used for textiles? Polyester, Nylon, Terylene Calderglen High School

  20. 19. answer Give a special property of KEVLAR Very strong Calderglen High School

  21. 20. answer Give some properties of ceramics. Withstand high temperatures Hard Good electrical insulators Calderglen High School

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