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How can ethene be made from ethane or naptha?
By cracking
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Ethene is the starting material for many plastics made by _______ polymerisation?
addition
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Condensation polymers are made from monomers with ____ functional groups per molecule?
two
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Give an example of a condensation polymer?
Polyesters
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Diol + diacid → ?
polyester + water
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What is a polyester?
A long chain molecule iwth many ester linkages
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The acid and alcohol group, in a polyester, can join up with the loss of...?
water
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What are the two ways polyesters can be classified?
As textile fibres and as resins
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What kind of structure do textile fibre polyesters have?
Linear
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What kind of structure do resin polyesters have?
Cross-linked
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What functional group does an amine contain?
NH2
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Circle the functional group in this amine
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What are polyamides made from?
A diamine and a diacarboxylicacid1
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Give an example of a polyamide
Nylon
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Why is nylon so strong?
Because of the hydrogen bonding inbetween the polymer chains
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