AQA · Chemistry · 8462
GCSE Chemistry: Condensation polymerisation
Organic chemistry · AQA GCSE Chemistry (8462), specification point 4.7.3.2. Cards are generated from the exam board's own specification for "Condensation polymerisation", and every card links back to the page it came from. Higher tier only. Separate science only. Specification © AQA — used with attribution.
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How many functional groups does each monomer have in condensation polymerisation?
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Two.
Which small molecule is usually lost when monomers join in condensation polymerisation?
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Water.
Why are condensation polymerisation reactions called condensation reactions?
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Because when the monomers join together they lose a small molecule, usually water.
How many different monomers make up the simplest condensation polymers?
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Two different monomers, each with two of the same functional group.
Ethanediol and hexanedioic acid polymerise to produce a ?.
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polyester
Which diol reacts with hexanedioic acid to form a polyester?
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Ethanediol.
Which dicarboxylic acid reacts with ethanediol to form a polyester?
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Hexanedioic acid.
Which functional group appears twice in ethanediol?
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The hydroxyl (–OH) alcohol group — one at each end of the molecule.
Which functional group appears twice in hexanedioic acid?
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The carboxylic acid (–COOH) group — one at each end of the molecule.
Why must condensation monomers have two functional groups rather than one?
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Each monomer needs a reactive group at both ends so it can bond to a neighbour on each side, building a long chain.
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