Checklist for exam 3 (2005)

Know what these are:

1. polymer

2. monomer

3. homopolymer

4. coploymer, random, alternating, block, graft

5. blend

6. ethylene, polyethylene

7. molecular weight of polymers

8. single, double bonds

9. functional group

10. alcohol, acid, ester

11. amine, amide

12. condensation reaction, addition reaction, polymerization

13. polyester

14. nylon

15. phenol, Bakelite

16. branching, crosslinking

17. vulcanization

18. thermosetting polymer

19. isotactic, syndiotactic, atactic

20. polypropylene

21. Melt spinning

22. Denier, tenacity

23. Fiber moduli

24. Glass transition temperature

25. Kevlar

26. Relaxation

27. Crazing

28. Shear-thinning

29. Calendaring

30. Extrusion

31. Plasticizer

32. "Vinyl", polyvinyl chloride

33. Epoxide

34. Prepreg

35. Composites: matrix, dispersed phase

36. TD Ni, SAP

37. GFRC, CFRP, AFRP

38. Silicones

39. Polycarbonate

40. Coupling agent

41. Performance factor

Know these functional groups:

acid, alcohol, amine, amide, epoxide, carbonate, ester

Be able to recognize and differentiate between these polymer structures:

polyethylene, polypropylene, nylon, Kevlar, PVC, silicone, polycarbonate, Bakelite,

Concepts:

Mechanisms for condensation & addition polymerization, branch formation

Crystallinity in polymers, structure of polyethylene crystallites, spherulites

Drawing, chain alignment, and alignment of crystalline regions

What influences Tg

What makes polymer chains stiff.....or flexible; bond rotation

Stress-strain behavior of polymers

Tensile strengths of polymers invarious configurations compared to other materials

Viscous flow, creep, relaxation, recovery

How to work wih PVCs

Why carbonates are strong, tough

Why epoxies ar hard

Nature of fibers & their role in strengthening

Stress-strain behavior of fiber reinforced polymer composites

Aspects of materials selection

Use of Ashby diagrams