CAIE A Level Chemistry 9701 · Polymerisation
A section of a polymer chain has the following repeating unit: .
(a) Explain why this polymer was produced by addition polymerisation rather than condensation polymerisation.
(b) Another polymer is produced by reacting 1,6-diaminohexane (hexane-1,6-diamine) with hexanedioic acid. Explain the type of polymerisation that occurs in this reaction, and name the linkage formed.
4 marks, so the mark scheme is looking for about 4 separate creditworthy points. Making the same point twice in different words earns it once.
Explain means: Give the reasons or the mechanism: why or how something happens. Link each point to the next with because, so or which means. A list of facts with no links usually loses the reasoning marks.
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