AQA · Chemistry · 8462
GCSE Chemistry: Addition polymerisation
Organic chemistry · AQA GCSE Chemistry (8462), specification point 4.7.3.1. Cards are generated from the exam board's own specification for "Addition polymerisation", and every card links back to the page it came from. Separate science only. Specification © AQA — used with attribution.
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Which homologous series of hydrocarbons is used to make addition polymers?
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Alkenes, because they contain a reactive C=C double bond.
In addition polymerisation, many small molecules called ? join together to form very large molecules called polymers.
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monomers
What is a polymer?
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A very large molecule formed when many small molecules (monomers) join together.
Which monomer is used to make poly(ethene)?
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Ethene (C2H4).
Which polymer is made by addition polymerisation of propene?
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Poly(propene).
Why does the repeating unit of an addition polymer have the same atoms as its monomer?
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Because no other molecule is formed in the reaction — the monomers simply add together.
Which functional group must a monomer have to undergo addition polymerisation?
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A carbon–carbon double bond (C=C).
What happens to the C=C double bond of an alkene during addition polymerisation?
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It opens up to form single C–C bonds that link the monomers into a long chain.
How many products are formed in an addition polymerisation reaction?
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Only one — the polymer; no other molecule is formed.
The part of a polymer chain that repeats along its length is called the ?.
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repeating unit
Give one example of a polymer made by addition polymerisation.
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Poly(ethene) (or poly(propene)).
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