(a)[1]
Polyesters and polyamides are both polymers made in condensation reactions. What is meant by the term condensation reaction?
(b(i))[1]
On the diagram, place a circle around an ester linkage.
(b(ii))[2]
Give the structures of the two monomers used to make this polymer.
(b(iii))[1]
Terylene is a polyester. State one ordinary use of Terylene.
(c)[2]
Explain, by referring to the groups present, why polymers with different linkages can be made from threonine.
(d(i))[1]
Draw the structure of ethene, including every atom and bond.
(d(ii))[1]
Poly(ethene) is a plastic that is non-biodegradable. What is meant by the term non-biodegradable?
(d(iii))[1]
Describe one pollution problem caused by the disposal of non-biodegradable plastics.