Addition polymerisation
3 marks · EasyThe table below shows the repeat units of three different addition polymers.
| Polymer | Repeat Unit (displayed formula) |
|---|---|
| Poly(ethene) | —CH2—CH2— |
| Poly(propene) | —CH2—CH(CH3)— |
| Poly(tetrafluoroethene) | —CF2—CF2— |
Which polymer's repeat unit contains a methyl group (—CH3)?
Give the name of the monomer used to make poly(tetrafluoroethene).
State the general name for the small molecules from which addition polymers are made.
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
(a) Poly(propene)
(b) Tetrafluoroethene
(c) Monomers
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Marking points
B1 (a) · 1 mark · Identifies Poly(propene) as the polymer whose repeat unit contains a methyl group.
B2 (b) · 1 mark · States tetrafluoroethene as the monomer for poly(tetrafluoroethene).
B3 (c) · 1 mark · States the term 'monomers' for molecules used to make addition polymers.
Worked solution
a) Poly(propene)
b) Tetrafluoroethene
c) Monomers