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How does the presence of double bonds in...

How does the presence of double bonds in rubber molecules influence their structure and reactivity?

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Natural rubber is all-cis polyisoprene which is obtained
The cis-bond in isoprene do not allow the polymer chains to come closer for effective interaction and hence intermolecular forces are very weak.As a result,natural rubber acquires randomly coiled structure and shows elasticity.
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CENGAGE CHEMISTRY-SYNTHETIC AND NATURAL POLYMERS-Exercises Concept Application
  1. Explain the terms polymer and monomer.

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  2. What are natural and syntheitc polymer?Give two examples of each.

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  3. Distinguised between the terms homopolymer ans copolymer and give as e...

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  4. Explain the unctionality of a monomer?

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  5. Define the term polymersation.

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  6. Is(NH-CHR-CO)(n)a homopolymer or copolymer?

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  7. How are polymers classified on the basis of molecular forces?

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  8. How can you differentiate between addition and condensation poymersati...

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  9. Explain the term copolymersation and give two examples.

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  10. Write the free radical mechanism for the polymersation of ethene.

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  11. Define thermoplastics and themosetting polymers and give examples of e...

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  12. Write the monomers used for getting the following polymers. (i)Polyv...

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  13. Write the name and structure of one of the common initiators used in f...

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  14. How does the presence of double bonds in rubber molecules influence th...

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  15. Discuss the main purpose of vulcanisation of rubber.

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  16. What are monomeric repeating units of nylon-6and nylon-6.6?

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  17. Write the names and structures of the monomers of the following polyme...

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  18. Identify the monomer in the following polymeric structures. (i)

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  19. How is Dacron obtained from ethylene glycol and terephthalic acid?

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  20. What is the biodegradable polymer?Give an example of a biodegradable a...

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