1. Sno-Camp Polymer Chemistry

2. Advantages of Polymers Ease of forming Recyclable Readily available raw material (crude oil) Low cost (most is less than $2.00 per lbs.)

3. Polymers Advantage Low (softening) “melt” temperature Disadvantage ◦Low (softening) “melt” temperature

4. Most Consumer Plastics are Thermoplastics Why you ask?: Form with heat Recyclable Low cost compared to other containers Transparent ( see the product)

5. Cost of 20oz Containers PETE $0.06 Aluminum $0.07 Glass $0.10

6. Response to Heat Thermoplastic ◦ Softens or melts with heat Thermoset ◦ Sets with chemical reaction Elastomer ◦ Is elastic

9. Various Polymer Structures

10. Polyethylene LDPE Low density polyethylene (trees with branches) HDPE High density polyethylene (trees without branches)

11. Polyethylene LDPE Sandwich Wrap ◦.92-.94 specific gravity HDPE Milk Carton ◦.95-.97 specific gravity Degree of crystalline content and branches ◦ Heat HDPE jug with a heat gun

12. Low Density Polyethylene Density of.910-.925 g/cm 3 Linear low-density Polyethylene Density.915-.925 g/cm 3 High-Density Polyethylene Density greater than.941

13. Polyethylene

15. Polypropylene

16. Polyvinyl Chloride

17. Polystyrene

18. Polycarbonate

19. ABS (Acrylonitrile, Butadine, Styrene)

20. Nylon 6 – 10

21. Polyester

22. PETE

23. Polylactic Acid (PLA)

24. Major types of polymers we see every day