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48 Cards in this Set
- Front
- Back
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Plastics |
What is another term for polymer? |
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Monomer |
What type of units do you make polymers with? |
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Polymer |
What do many monomers together form? |
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segma |
What is the repeating unit within the polymer that is made from the monomer known as? |
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segma |
is the minimum amount of structure you tell somebody that gives them an idea of the repeating unit that is within that particular unit |
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You can use all of one polymer made from one monomer (homopolymer = monomer) |
What occurs when the polymers are synthesized? |
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Heteropolymer (or copolymer = the putting together of two or more polymers) |
What occurs when you have more than two polymer made from two or more monomer? |
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Nylon 66 (you have 2 different 6 carbon pieces coming together to make that a particular system) |
What is an example of a copolymer? |
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Through addition polymers , beats on a string - two polymers made separately and put them together - removing water (things like polyester) - condensation polymer |
How do you put polymers together? |
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- it is a homo-polymer - made from a particular monomer - and the repeating unit has a particular segma structure associate with it |
How do you describe polyvinylchloride (PVC)? |
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True |
True or False: The Monomer directly controls what the polymer is going to do |
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They can be: fibers, sheets, films, coatings, case on a phone, clothes, pen, bookbag |
What can these polymers do? |
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Natural Polymers: Wool (protein polymer), cotton (carbohydrate polymer), cellulose (natural plant) |
What were the first polymers that people used? |
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Synthetic polymers such as: dackron, nylon, and polyester, |
What replaced natural polymers? |
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We don't modify the polymer or change its Chemistry, but we modified there shape or arrangement from single fibers into woven together fibers |
How to do you use natural polymers? |
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was taking cellulose and mixing it with nitric acid and ethanol - we change the shape of the polymer |
What was the first modified polymer? |
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celluloid, not a synthetic polymer |
What is a modified natural polymer? |
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It is a synthetic ivory |
What is celluloid? |
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Because real ivory was becoming limited and very expensive |
Why was celluloid made? |
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Billoid Balls, piano keys, transparent film (movies) |
What can you make with celluloid? |
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It becomes fragile, flammable, and it degrades over time, not very stable |
What was the problem with celluloid? |
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Bacolite |
What was the first synthetic polymer which started with a monomer and made it into polymer? |
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You take monomers together and add them together like beads on a string - it can be color |
How do you make bacolite? |
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It is friable - You can make boxes, radio cases |
What is the problem with bakelite? What can you do with it? |
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The double bond crammed between the 2 atoms - you can string them together to make a polymer - it reactive |
What makes Polyethylene work? |
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Saran |
What is another name for polyethylene? |
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Saran wrap, films, movies, insulator on wires |
What can you make with polyethylene? |
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It made radar more effective, and it was the cause the caused War II to ended shorter |
What did polyethylene do for the war efforts? |
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- anti-stick thing for pans - used to purify bomb grade uranium (the bomb used on Hiroshima) |
What was teflon used for? |
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Monomer |
The characteristics of the polymer depends on the type of _________ you built it from. |
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Oil |
What are most polymers derived from: |
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PVC piping, styrofoam, synthetic rubber |
What are examples of Industrial polymers? |
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Plants |
Where does rubber come from? |
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rubber for tires, hoses, belts, |
What is a modification of natural rubber? |
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Oil and coal |
How do you make synthetic rubber? |
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water resistant, mildew resistant, oil resistant, flame resistant, crush resistant |
What are the characteristics of synthetic materials? |
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TG, glass transition temperature |
What is the physical property of a polymer? |
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flexibility or rigidity |
What does TG measure? |
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- Rigid structures are highly ordered (Brittle and/or fragible) - flexible (above) |
What occurs Below the TG? Above? |
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All weather tires |
What are synthetic polymers that can survive temperatures above and below the TG? |
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Many synthetic polymers such as nylon, and many other polymers |
What are tires made of? |
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- The combinations of polymers used to make tires causes them to last a long time - Therefore disposing them is a difficult thing to do |
What is a problem with tires? |
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it creates a toxic chemical called cyanide |
What happens when you burn tires? |
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The price for monomer and polymers goes up - You must Reduce, recycle, and reuse |
What happens when the price of oil goes up, and the supply of oil goes down? What do you do when this occurs? |
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- If you reduce your usage, you reduce your oil dependency - if you reuse a polymer, you reduce oil and resources dependency - recycling - engineer new polymers that allow them to break down (natural resources) |
Explain how to use reduce, recycle, and reuse? |
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- corn |
What are natural resources that can allow you to recycle polymers? |
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Yes and no |
Are there plastics and polymers that you cannot live without? Are ones that you can live without? |
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- Germany: They force you to reuse - NY: Trash police |
What do they do in Germany? NY? |
