1 / 17

Chapter 11 Unsaturated Hydrocarbons

Chapter 11 Unsaturated Hydrocarbons. 11.4 Polymers of Alkenes. Polymers. Polymers are large, long-chain molecules found in nature, including cellulose in plants, starches in food, proteins, and DNA in the body also synthetic, such as polyethylene and polystyrene, Teflon, and nylon

faulkner
Télécharger la présentation

Chapter 11 Unsaturated Hydrocarbons

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. Chapter 11 Unsaturated Hydrocarbons 11.4 Polymers of Alkenes

  2. Polymers Polymers are • large, long-chain molecules • found in nature, including cellulose in plants, starches in food, proteins, and DNA in the body • also synthetic, such as polyethylene and polystyrene, Teflon, and nylon • composed of small repeating units called monomers • made from reaction of small alkenes

  3. Addition Reactions: Polymerization In polymerization, small repeating units called monomersjoin to form a long-chain polymer in an addition reaction. monomer unit repeats n

  4. Common Synthetic Polymers Synthetic polymers provide a wide variety of items that we use every day.

  5. Common Synthetic Polymers: Polyethylene Polyethylene is made using an addition reaction with the monomer unit ethylene. Common uses for polyethylene include plastic bottles, film, and insulation materials.

  6. Common Synthetic Polymers: Polytetrafluoroethylene Polytetrafluoroethylene, primarily used in nonstick coatings, is made using an addition reaction with the monomer unit of tetrafluoroethene. tetrafluoroethene polytetrafluoroethylene

  7. Common Synthetic Polymers: Polypropylene Polypropylene is used for ski and hiking clothing, carpets, and artificial joints.

  8. Common Synthetic Polymers: Polystyrene Polystyrene is used for plastic coffee cups, cartons, and insulation.

  9. Common Synthetic Polymers: Polyvinylchloride Polyvinylchloride, also known as PVC, is used for plastic pipes and tubing, garden hoses, and garbage bags.

  10. Common Synthetic Polymers: Polydichloroethylene Polydichloroethylene is used in plastic film and wraps.

  11. Learning Check Name the starting monomer and give its structure for each of the following polymers: A. polyethylene B. polyvinylchloride C. polystyrene

  12. Solution Name the starting monomer and give its structure for each of the following polymers: A. polyethylene ethene B. polyvinylchloride chloroethene C. polystyrene phenylethene, styrene

  13. Learning Check Name the monomer used to make polypropylene, and write a portion of a polypropylene polymer using three monomers.

  14. Solution Name the monomer used to make polypropylene, and write a portion of a polypropylene polymer using three monomers.

  15. Recycling Plastics Recycling is simplified by using codes on plastic items. 1 PETE Polyethylene terephtalate 2 HDPEHigh-density polyethylene 3 PVPolyvinyl chloride 4 LDPELow-density polyethylene 5 PP Polypropylene 6 PSPolystyrene 7 OTHER Other plastic: fiberglass, polycarbonate, etc.

  16. Learning Check What types of plastic are indicated by the following codes? A. B. C. 3 PV 5 PP 6 PS

  17. Solution What types of plastic are indicated by the following codes? A. polyvinylchloride B. polypropylene C. polystyrene 3 PV 5 PP 6 PS

More Related