SREE SASTHA INSTITUE OF ENGINEERING AND TECHNOLOGY, CHEMBARAMABKKAM, CHENNAI - 123

DEPARTMENT OF CHEMISTRY

SUB: CY6151-ENGINEERING CHEMISTRY I

QUESTION BANK

UNIT - I POLYMER CHEMISTRY

PART - A

1. Define polymer and monomer.2. What is polymerization? What are its types?3. What is degree of polymerisation? AU,CHN, Jan'20144. What is the functionality of(a)propylene, (b)phenol towards polymerisation? AU,CHN, May'20155. Define functionality? Give examples.6. Give differences between addition and condensation polymerisation.7. What are initiators? Give examples.8. Give differences between addition and condensation polymerisation9. Give differences between cationic and anionic polymerisation.10. What are co-polymers? AU,CHN, Dec'201411. Give differences between thermoplastics and thermosetting plastics.12. What is glass transition temperature? Write any four factors influencing it.13. Define molecular mass of a polymer. Write its significances.14. Define polydispersity index. AU,CHN, May'201515. Define tacticity. What are its types?16. Write the siginificances of polydispersity index.17. Write the applications of bulk and solution polymerisation.18. Write the applications of emulsion and suspension polymerisation.19. Mention any two uses of Nylon-6,6. AU,CHN, May'201520. Mention any two uses of epoxy resin. AU,CHN, Jan'2014

PART - B21. Explain the mechanism of addition polymerisation through free radicals. AU,CHN, May'201522. What are the differneces between thermoplastics and thermosetting plastics? AU,CHN, May'2015,

AU,CHN, Jan'2014, AU,CHN, Jun'2014.23. Discus cationic polymerisation mechanism in detail. AU,CHN, Jan'201424. What are the different types of molecular mass of polymers? Explain it with their significances.

AU,CHN, May'201525. Explain any four properties of polymers in detail. AU,CHN, Jan'201426. Discus bulk polumerisation techniques. Mention any two polymers synthesized by this

techniques. AU,CHN, Jun'201427. Discus suspension polymerization techniques. Mention any two polymers synthesized by this

techniques. 28. Describe the emulsion polymerisation techniques. Give two examples. AU,CHN, Dec'2014

29. Explain the following: (a) Emulsion polymerisation, (b) Solution polymerisation. AU,CHN, May'2015

30. Write the preparation, properties and uses of epoxy resin. AU,CHN, Jun'201431. Discus the preparation, properties and uses of Nylon-6,6. AU,CHN, Jan'201432.