Polymers

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  • Created by: ryan
  • Created on: 14-01-13 18:37
What is a hydrocarbon?
A hydrocarbon is a compound of carbon atoms and hydrogen atoms only.
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When are addition polymers made?
Addition polymers are made when alkene monomer molecules react together under high pressure and with a catalyst.
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What is the difference between Alkanes and Alkenes?
Alkanes are hydrocarbons which contain single covalent bonds only. Alkenes are hydrocarbons which contain a double bond between carbon atoms.
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How can plastics bend?
Plastics that have weak intermolecular forces between the ploymer molecules can easily be stretched as the polymer molecules can slide over one another. rigid polymers have cross-linking bridges.
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What are Nylon and GORE-TEX? What are their properties?
Nylon and GORE-TEX are polymers with suitable properties for particular uses. Nylon is tough, lightweight and keeps water and UV out. GORE-TEX has all these properties but allows water vapour to pass out so that sweat does not condense.
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Other cards in this set

Card 2

Front

When are addition polymers made?

Back

Addition polymers are made when alkene monomer molecules react together under high pressure and with a catalyst.

Card 3

Front

What is the difference between Alkanes and Alkenes?

Back

Preview of the front of card 3

Card 4

Front

How can plastics bend?

Back

Preview of the front of card 4

Card 5

Front

What are Nylon and GORE-TEX? What are their properties?

Back

Preview of the front of card 5

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Georgia1406

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Using plasticisers 

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