CAIE A Level Chemistry 9701 · Polymerisation

Polymerisation: describe question

Describe5 marksChallenge

A polyester and a polyamide are both condensation polymers. A particular polyamide is formed when a diamine, $\ce{H2N-CH2CH2CH2CH2-NH2}$ , reacts with a dioyl chloride, $\ce{ClOC-CH2CH2CH2CH2-COCl}$ .

Describe the formation of this polyamide, and deduce the repeat unit of the polymer.

How this question is marked

5 marks, so the mark scheme is looking for about 5 separate creditworthy points. Making the same point twice in different words earns it once.

Describe means: Say what happens or what something is like, in order and with detail. You are not being asked why. If there is data, quote it: name the trend, then give figures with units at the points where it changes.

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