21 Polymerisation Flashcards
1
Q
Name an example of a synthetic polyester and a synthetic polyamide. Ref: 9701/42/F/M/16
A
polyester : Terylene/polylactic acid (PLA)/ polyamide : nylon/Kevlar/Nomex
2
Q
State how many different dipeptides could be formed from a reaction mixture consisting of amino acids T and U.
A
four (TT, TU, UT, UU)
3
Q
State the reagents and conditions needed for converting the tripeptide into its three constituent amino acids.
Ref: 9701/41/M/J/16
A
heat with H3O+ OR heat with OH–(aq)
4
Q
Polymer Z is an example of a biodegradable polymer. Name a polymer that is non-biodegradable.
Ref: 9701/41/O/N/16
A
any named polyalkene /eg polyethene, PVC allow Bakelite or Kevlar
