Term
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Definition
| Polymers are long chains of atoms covalently bonded together |
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Term
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Definition
| a Monomer is a small molecule used to synthesize a polymer chain; What makes up a polymer |
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Term
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Definition
| A plastic is anything that can be molded to a desired shape |
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Term
| What is Addition Polymerization? |
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Definition
| The process of adding atoms to a polymer chain |
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Term
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Definition
| Something that speeds up a chemical reaction, but does not change the product |
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Term
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Definition
| Volatile organic compound- a compound that passes easily into the vapor phase. All VOC's contain carbon and hydrogen. |
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Term
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Definition
| A polymer; used to make milk jugs. |
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Term
| What is an Intermolecular force? |
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Definition
| the attraction of 2 molecules by an inside force (Electrons, Neutrons, etc.) |
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Term
| What is a Dispersion force? |
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Definition
| The stretching of plastic. This stretching changes the molecular make-up of the Polymer |
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Term
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Definition
HDPE- High Density Polyethylene.
LDPE- Low Density Polyethylene.
High density is stronger than low density.
High density is often opaque.
Low density is often transparent. |
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Term
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Definition
| Plastic that can be melted down and reshaped over and over |
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Term
| What is a Crystalline region? |
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Definition
| A region of polymer that is very organized. |
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Term
What is Polyethylene?
What are its properties?
What are its uses? |
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Definition
H H
\ /
C =C
/ \
H H
Polyethylenes properties: Translucent if not pigmented. Soft and flexible. Unreactive to acids and bases. Strong and tough.
Uses: Bags, films, sheets, bubble wrap, toys, wire insulation. |
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Term
What is Polyvinyl Chloride?
What are its properties?
What are its uses? |
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Definition
H H
\ /
C =C
/ \
H Cl
Properties: Rigid if not softened by plasticizer. Clear and shiny, but often pigmented. Resistent to most chemicals, including acids, and bases
Uses: Rigid: Plumbing pipe, house siding, Charge cards.
Soft: Garden hoses, waterproof boots, shower curtains, IV tubing. |
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Term
What is Polystyrene?
What are its properties?
What are its uses? |
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Definition
H H
\ /
C =C
/ \
H __
/ O \
\ __/
Properties: Variable. "Crystal" from transparent, sparkling, somewhat brittle. "Expandable" from lightweight foam. Both forms are rigid and dissolve in many organic solvents
Uses: Bottle Caps. Yogurt, Cream, and margarine containers. Carpeting, casual furniture, luggage. |
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Term
What is Polyethylene terephthalate?
What are its properties?
What are its uses? |
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Definition
O O
\\ __ //
C_ / O \_C
/ \ __/ \
HO OH
Properties: Transparent, strong, shatter-resistant. Impervious to acids and atmospheric gases. Most costly of the "Big six" polymers.
Uses: Soft-drink bottles, clear food containers, beverage glasses, fleece fabrics, carpet yarns, fiber-fill insulation.
*Note* Polyetylene terephthalate is made with 2 different Monomers |
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Term
| What is an amorphous region? |
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Definition
| A random, disorganized structure. A lot looser than a crystalline region |
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Term
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Definition
| a compound added to polymers to make them either harder or softer. |
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Term
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Definition
| a substance capable of producing a foamed plastic |
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