1 / 96

Topics for Today

Topics for Today. Back to PVC and Addition Polymers Stiff or Flexible? Plasticizers. Topics for Today. Orientation of the polymer Head-to-head? Head-to-tail? What else is in plastic?. Readings for Today. Review 9.2 The Big Six 9.3 Addition Polymers. Topics for Friday. Exam #3!.

tamera
Télécharger la présentation

Topics for Today

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Topics for Today • Back to PVC and Addition Polymers • Stiff or Flexible? Plasticizers

  2. Topics for Today • Orientation of the polymer • Head-to-head? Head-to-tail? • What else is in plastic?

  3. Readings for Today • Review • 9.2 The Big Six • 9.3 Addition Polymers

  4. Topics for Friday

  5. Exam #3! This Friday! Same format as always

  6. Exam #3! Non-memory calculators OK. Please, no cell phones

  7. Topics for Monday • Lipids, Fats, and Oils!

  8. Topics for Monday • What is a fat? Fatty acid? • Saturated vs unsaturated fats • Animal versus plant

  9. Readings For Monday • 11.3 Fat & Oils: Part of the lipid family • 11.4 Saturated and Unsaturated Fats & Oils

  10. Figures Alive! http://chemincontext.eppg.com/chapter11/FiguresAlive.html

  11. Topics for Today • Back to PVC and Addition Polymers • Stiff or Flexible? Plasticizers

  12. Where were we??

  13. Condensation Polymers! Polyester Nylon

  14. Monomers? Summary… PET O O H H C C O O C C H H n Double Acid Double Alcohol Double Acid Double Alcohol ESTER ESTER ESTER ESTER ESTER

  15. Monomers? Summary… Nylon 6,6 O H H O N C N (CH2)6 C (CH2)4 n Double Acid Double Amine Double Acid Double Amine AMIDE AMIDE AMIDE AMIDE AMIDE

  16. Be able to write the overall reaction for production of a polyamide for ANY given diacid and diamine!!!! Same for the production of a polyester for ANY given diacid and dialcohol!!

  17. Preview…

  18. Equation 9.7 (p. 414) Built from amino acids!

  19. Condensation Polymers • Nylon and PET (polyester) A small molecule is released as a byproduct Can be built from one or two monomers

  20. Addition Polymers • PP, PS, HDPE, LDPE, PVC, Teflon 1 monomer No byproducts!

  21. Polyethylene [ ]n H H R· –CH2–CH2– n C = C H H EXPAND!

  22. Polyethylene H H H H H H H H H H H H H H H H H H H H H H C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C H H H H H H H H H H H H H H H H H H H H H H

  23. Polypropylene Does the orientation matter? H H H H R· — C – C— n C = C n H CH3 H CH3 Expand out…

  24. CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 H CH3 H H CH3 H H H H H H H H C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C H H H H H H H H H H H H H H H H H H H H H H Same or different? H H H H H H H H H H H H H H H H H H H H H H C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 H CH3 H H CH3 H H H H H H H H

  25. CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 H CH3 H H CH3 H H H H H H H H C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C H H H H H H H H H H H H H H H H H H H H H H CH3 CH3 CH3 CH3 CH3 H H H H H H H H H H H H H H H H CH3 C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C H H H H H H H H H H H H H H H H H CH3 CH3 CH3 CH3 CH3 H H H H H H H H H H H H H H H H H H H H H H C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 H CH3 H H CH3 H H H H H H H H

  26. Polyproylene Does the orientation matter? H H H H R· — C – C— n C = C n H CH3 H CH3 HEAD TAIL

  27. CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 H CH3 H H CH3 H H H H H H H H C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H H C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 H CH3 H H CH3 H H H H H H H H

  28. Polypropylene Head-to-Tail CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 H CH3 H H CH3 H H H H H H H H C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C H H H H H H H H H H H H H H H H H H H H H H Any other options? = methyl = H

  29. CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 H CH3 H H CH3 H H H H H H H H C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C H H H H H H H H H H H H H H H H H H H H H H These are all head-to-tail!! CH3 CH3 CH3 CH3 CH3 H H H H H H H H H H H H H H H H CH3 C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C H H H H H H H H H H H H H H H H H CH3 CH3 CH3 CH3 CH3 H H H H H H H H H H H H H H H H H H H H H H C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 H CH3 H H CH3 H H H H H H H H

  30. Polypropylene Head-to-Head CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 H CH3 H H CH3 H H H H H H H H C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C H H H H H H H H H H H H H H H H H H H H H H Any other options? = methyl = H

  31. Polypropylene - Random CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 CH3 H CH3 H H CH3 H H H H H H H H C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C -C H H H H H H H H H H H H H H H H H H H H H H = methyl = H

  32. Polystyrene Glassy and brittle

  33. Polystyrene • Can be injected with a gas to make foam! We used to use CFCs!

  34. Polystyrene? H H H H R· — C – C— n C = C n H H HEAD TAIL

  35. Polystyrene What orientation?

  36. Polyvinyl Chloride (PVC)

  37. Polymerize! Cl H C C H H vinyl chloride

  38. Polyvinylchloride (PVC) H H H H R· — C – C— n C = C n H Cl H Cl

  39. PVC Cl Cl Cl Cl Cl Head-to-tail

  40. PVC Cl Cl Cl Cl Cl Head-to-tail Has order – packs well

  41. Rigid, stiff material PVC Cl Cl Cl Cl Cl Head-to-tail Has order – packs well

  42. PVC Cl Cl Cl Cl Cl Cl Head-to-head

  43. Rigid, stiff material PVC Cl Cl Cl Cl Cl Cl Head-to-head Has order – packs well

  44. PVC Cl Cl Cl Cl Cl Random

  45. PVC Cl Cl Cl Cl Cl Random Less order – does not pack as well

  46. Slightly softer PVC Cl Cl Cl Cl Cl Random Less order – does not pack as well

  47. PVC comes in many forms!

  48. PVC • Can be opaque and rigid

  49. PVC • Can be opaque and rigid

  50. PVC • Can be transparent and softer

More Related