Answer these questions on topic “Polymers”.

1. Do you know what a natural polymer is? Can you give examples of natural polymers and fields of their application?
2. How do people employ natural polymers in different industries?
3. What are the main properties of natural polymers? Give examples.
4. What does vulcanization stand for? Why do people need it?
5. Why didn’t people use rubber much in the past and what expanded its uses?
6. What are the main sources for synthetic materials production nowadays?
7. Make three examples of synthetic polymers and explain what do people use them for?
8. What are the main advantages of synthetic polymers over natural polymers?
9. How are synthetic materials utilized in our country in comparison with Europe?
10. How are plastics wastes utilized?
11. Is it ecologically friendly to produce plastics?
12. What is the difference between thermosetting and thermoplastic materials? (make examples from everyday life)
13. What is the main difference between polyvinyl chloride and polyethylene?
14. Do you know what polymerization is? What types of polymerization and differences between them can you name?
15. What is a nanofibre? Where is it applied?
16. Why is the world plastics consumption growing? Does it (consumption) need reduction, why?
17. Why is it a problem to manufacture plastic material with the same color? (you know that sometimes they differ from each other in color)