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Unformatted text preview: 1 Chapter 9 The World of Plastics and Polymers Homework: Questions _________________ Monday, 14 October 2009 Readings Chapter 9.4 and 9.2 Monday ! s lecture: Chapter 9.3 and 9.5 2 1. What materials are used to make plastic? 2. Can we address the recycling of plastics and the harmful environmental effects of combusting plastics? 3. Is there any hope for bio-degradable plastics? 4. Why do we make plastic if it is so bad for the Earth? 5. How are plastics/polymers useful/created to speciFcally aid in body support or mobilization? e.g. leg braces, back supports 6. Effects of landFlls on pollution (“affects of landFlls in pollution”) 7. How do we determine regulations for companies ! pollutants? 3 C C H H H H H H Newman projections H H H S taggered conformation H H H E clipsed conformation Which one is higher in energy? C C H H H H H H 4 Take home message Molecules have preferred conformations that are generally determined by “_______” = _________________ _________________, and molecules generally prefer to be in their lowest energy conformations E E E E S S S 5...
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- Fall '09
- Polymer, Polymer chemistry, Molecule, Addition Polymers, PVC PS PP