3 – 4 Polymers and Novel Materials

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Presentation transcript:

3 – 4 Polymers and Novel Materials 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Calderglen High School

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

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

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

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

Give examples of thermosetting polymers 5. Give examples of thermosetting polymers answer Bakelite Formica Calderglen High School

Calderglen High School 6. From which RAW MATERIAL do we obtain the chemicals used to make most plastics and synthetic fibres? answer CRUDE OIL Calderglen High School

What type of hydrocarbons are the monomers for addition polymers? 7. What type of hydrocarbons are the monomers for addition polymers? answer ALKENES Calderglen High School

How are polymers formed? 8. How are polymers formed? answer The small monomers join together to form large polymers Calderglen High School

The word ‘poly’ goes in front of the monomer name 9. How are polymers named? answer The word ‘poly’ goes in front of the monomer name Calderglen High School

List some uses of ceramic materials 10. List some uses of ceramic materials answer Cooking pots Electrical insulator for powerlines Calderglen High School

List some new materials and their uses 11. List some new materials and their uses answer Hydrogel – absorbs water – nappies (or any reasonable example) Calderglen High School

12. What does soluble mean? answer Soluble means that a substance can be dissolved Calderglen High School

What is POLYMERISATION? 13. What is POLYMERISATION? answer The type of reaction in which many small molecules (monomers) join together to form polymers Calderglen High School

Calderglen High School 14. What is a solute? answer A solute is a substance which can be dissolved Calderglen High School

What is a THERMOPLASTIC polymer? 15. What is a THERMOPLASTIC polymer? answer A thermoplastic polymer is one which softens on heating and can be reshaped Calderglen High School

Give some advantages of synthetic polymers 16. Give some advantages of synthetic polymers answer Cheap, light weight, long lasting (durable/hard-wearing), insulators Calderglen High School

Calderglen High School 17. Give some examples of how the PROPERTIES of plastics are related to their USES answer PVC Non-conductor of electricity, flexible Insulating electrical cables Polystyrene Non-conductor of heat, lightweight Hot drinks cups Calderglen High School

What danger is associated with burning plastics? 18. What danger is associated with burning plastics? answer Toxic gases can be produced Calderglen High School

BIODEGRADABLE means ………. 19. BIODEGRADABLE means ………. answer Decomposed (rots) naturally by living matter Calderglen High School

Name 3 toxic gases that could be given off by a burning plastic 20. Name 3 toxic gases that could be given off by a burning plastic answer Carbon monoxide (from almost any plastic) Hydrogen chloride (from PVC) Hydrogen cyanide (from polyurethane) Calderglen High School

What type of plastic does not soften on heating? 21. What type of plastic does not soften on heating? answer Thermosetting Calderglen High School

Calderglen High School 22. What is a solvent? answer A solvent is a substance which can be used to dissolve something Calderglen High School

Calderglen High School 23. Which of the following substances will dissolve in water? Salt, wax, sugar, oil answer Salt, sugar Calderglen High School

Calderglen High School 24. What is the monomer for POLYPROPENE* answer Propene Calderglen High School

Give some disadvantages of synthetic fibres? 25. Give some disadvantages of synthetic fibres? answer Don’t feel or look as good, finite, non-biodegradable (won’t rot), burn to give toxic fumes Calderglen High School

Give an example of a polymer used for textiles? 26. Give an example of a polymer used for textiles? answer Polyester, Nylon, Terylene Calderglen High School

Give a special property of polyethenol. 27. Give a special property of polyethenol. answer Water soluble Calderglen High School

Give a special property of KEVLAR 28. Give a special property of KEVLAR answer Very strong Calderglen High School

Give a special property of BIOPOL 29. Give a special property of BIOPOL answer BIODEGRADABLE Calderglen High School

Give some properties of ceramics. 30. Give some properties of ceramics. answer Withstand high temperatures Hard Good electrical insulators Calderglen High School