Chemistry 9701 · AS & A Level · Polymerisation

Polymerisation — practice question

The structural formula of compound H is $\text{CH}_2{=}\text{CHCH(NH}_2)\text{COOH}$.
(a(i))[2]

State all functional groups present in H.

(a(ii))[2]

Compound H shows stereoisomerism. Draw three-dimensional structures of the two stereoisomers of H. Name this type of stereoisomerism.

(b(i))[1]

Complete Fig. 6.2 to show the equation for this reaction.

(b(ii))[1]

State the reaction type in (b)(i).

(c(i))[1]

Draw one repeat unit of addition polymer K.

(c(ii))[2]

Draw two repeat units of condensation polymer L. The new functional group formed should be shown.

(c(iii))[1]

Explain why condensation polymers usually biodegrade more readily than addition polymers.

(c)

Polymers are formed when monomers join by either addition polymerisation or condensation polymerisation. Depending on the conditions, compound H can react to produce an addition polymer, K, or a condensation polymer, L.

Worked solution & mark scheme

This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: Carboxylic acid, amine, alkene (any two for 1 mark; all three for 2 marks)

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI