SC24b Polymer properties and uses

Question 1

poly(ethene)
1.properties?
2.uses?

Answer 1

1.flexible, cheap, good insulator
2.plastic bags, plastic bottles, cling film, polytunnels

Question 2

poly(propene)
1.properties?
2.uses?

Answer 2

1.flexible, does not shatter
2.buckets and bowls, crates, ropes, carpets

Question 3

poly(chloroethene)
1.properties?
2.uses?

Answer 3

1.tough, good insulator, can be made hard or flexible
2.window frames, gutters, pipes, insulation for electrical wires

Question 4

poly(tetrafluoroethene)
1.properties?
2.uses?

Answer 4

1.tough, slippery
2.non-stick coatings for frying pans and kitchen utensils, burette taps, stain-proofing clothing and carpets

Question 5

poly(propene) polymerisation

Answer 5

. H H [ H H ]
n C=C —> [-C- C–]
. H CH₃ [ H CH₃]n

Question 6

poly(chloroethene) PVC polymerisation

Answer 6

. Cl H [ Cl H ]
n C=C —> [-C - C-]
. H H [ H H ]n

Question 7

poly(tetrafluoroethene) PTFE polymerisation

Answer 7

. F F [ F F ]
n C=C —> [-C- C-]
. F F [ F F ]