Crossword Puzzle on POLYMERS

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Across
  1. 4. process of developing charges on carbon skeleton in polymers
  2. 6. different monomers on selflinkage by addition reaction forms---------
  3. 7. these plastics are formed by addition polymerization
  4. 8. below glass transition temperature polymers are-----in nature
  5. 11. intrinsic conducting polymer with pi conjugation
  6. 12. ----are made by urea-formaldehyde reflects UV light
  7. 13. ----fibers are used as structural composites in aircraft industry
  8. 14. above its Tg PVC is in -------state
  9. 17. polymers commonly used in engineering field whose degree of polymerisation is above 100 are called---
  10. 19. polymers are viscous because their capability to -------- after the strain.
  11. 20. -----FRPs cannot be used as structural composites
  12. 21. --- made pipes are used in conveying petrol
Down
  1. 1. -----is used as anion exchange resin
  2. 2. Optically transparent thermoplastic polymer
  3. 3. Trade name of PMMA
  4. 5. ----polymers does not contain definite melting point
  5. 9. greater the number of -------- greater will be the crystalline nature of polymer
  6. 10. ------cross links are developed by adding Hexamethylene tetraiamine
  7. 15. polypropylene made bottles are made by this technique
  8. 16. -----is the stage -A resin formed in the synthesis of Bakelite
  9. 18. ----is the stage -B resin formed in the synthesis of Bakelite