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Explain the chain-growth and step-growth...

Explain the chain-growth and step-growth polymerization.

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ICSE-POLYMERS -EXERCISE (PART-II (DESCRIPTIVE QUESTIONS )) ( LONG ANSWER QUESTIONS )
  1. What are polymers? Why are they called macromolecules ? How are the po...

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  2. How are polymers classified according to their structure? Give importa...

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  3. Explain the chain-growth and step-growth polymerization.

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  4. Write the mechanism of free radical polymerization of ethene.

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  5. How does the presence of benzoquionone inhibit the free radical polyme...

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  6. What are chain-growth polymers ?

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  7. Describe briefly: Radical polymerization

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  8. Describe briefly: Cationic polymerization

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  9. Describe briefly: Anionic polymerization

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  10. Why should one always use purest monomer in free radical polymerizatio...

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  11. Elaborate the structure of natural rubber.

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  12. How do double bonds in rubber molecules influence their structure and ...

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  13. What is vulcanization? How does vulcanization improve the quality of n...

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  14. What is the monomer of natural rubber? What is the difference in the s...

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  15. What is vulcanization ? Why is it done? Why is diphenyl added to rubbe...

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  16. Why is neoprene non-inflammable? Give one of its uses.

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  17. Define the following terms: Thermoplastics

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  18. Define the following terms: Thermosetting plastics

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  19. Define the following terms: Elastomers

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  20. Give two points of difference between thermoplastic and thermosetting ...

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