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Define thermoplastics and thermosetting ...

Define thermoplastics and thermosetting polymers with two examples of each

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A thermoplastic polymer can be repeatedly softened on heating and hardened on cooling, hence it 'can be used again and again. eg. Polythéne. polypropylene etc. ди! A thermosetting polymer is a perinanent setting polymer as it gets hardened andsets during moulding process" and cannot be saftened again. eg. bakelite and melamine formaldehyde polymers.
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V PUBLICATION-POLYMERS-QUESTION BANK
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  2. Write the free radical mechanism for the polymerization of ethene

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  9. Write then names and structure of the monomers of the following polyme...

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  10. Identify the monomer in the following polymeric structures: '(##VPSH...

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  11. How is dacron obtained from ethylene glycol and terephthalic acid?

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  12. What is biodegradable polymer? Give an example of a biodegradable alip...

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  13. What is the starting material for the preparation of PVC

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  14. What are the monomers of the following? Nylon 6

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  15. Define plasticizers

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  16. Write the name and structure of the monomer units of terylene.

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  17. Give the name of the polymer which is used for making non - stick uten...

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  18. Name a synthetic polymer which is an ester

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  19. What does PMMA stand for?

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  20. Write the monomers used for getting the following polymers. i) Polyvi...

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