Chemistry 11 (HL)
Unit 7 - IB Topics 10.5 and 20.2
Organic Chemistry 8
Polymers - Practice Problems
1.
Given these addition polymers, draw the structural formula for the monomer.
2.
Draw a 4 unit section of the addition polymer made from but-1-ene.
Draw the repeating subunit.
p. 1
Chemistry 11 (HL)
3.
Unit 7 - IB Topics 10.5 and 20.2
Polyesters are formed in a condensation reaction. The structure of the repeat
unit of a polyester is
(i)
Draw the structures of the two monomers that react to form this polyester.
(ii)
Identify the essential feature of the monomers in (i) that enable them to
form a condensation polymer.
4.
Draw two repeating units of the polyamide formed from the monomer 4-aminobutanoic acid.
5.
The polymer produced from the polymerization of HOOCCOOH and
HOCH2CH2OH is
6.
a.
[- OOCCOCH2CH2O - ]n
b.
[- OCH2CH2OOCCO - ]n
c.
[- OOCOOCH2CH2O - ]n
d.
[- OCCH2OOCCH2O - ]n
e.
[- COOHCH2CH2CO - ]n
Amino acids have the general structure:
Draw the structure of a 4 monomer section of a polymer made using this amino acid
structure. Circle and name the linkage.
p. 2
Chemistry 11 (HL)
7.
8.
9.
Unit 7 - IB Topics 10.5 and 20.2
For the two compounds HCOOCH2CH3 and HCOOCHCH2:
I
II
(i)
State and explain which of the two compounds can react readily with
bromine.
(ii)
Compound II can form polymers. State the type of polymerization
compound II undergoes, and draw the structure of the repeating unit of the
polymer.
The plastic PVC, poly(chloroethene), is made from the monomer chloroethene,
C2H3Cl, by a polymerization reaction.
(i)
Draw the structural formula of chloroethene.
(ii)
State the type of polymerization reaction that occurs to make
poly(chloroethene) and identify the structural feature needed in the
monomer.
(iii)
Draw the structure of the repeating unit of poly(chloroethene).
(iv)
Explain why monomers are often gases or volatile liquids, whereas
polymers are solids.
Hexanedioic acid and 1,6-diaminohexane react together to form a synthetic
polymer. There are many natural polymers, some of the most familiar being
proteins formed from 2-amino acids.
(i)
Give the structural formula of each monomer in the synthetic polymer.
p. 3
Chemistry 11 (HL)
10.
Unit 7 - IB Topics 10.5 and 20.2
(ii)
State the type of polymerization reaction that occurs between these two
monomers and identify the structural feature needed in the monomers.
(iii)
Draw the structure of and state the type of linkage formed in this polymer,
and identify the other product of this polymerization reaction.
A polymer has this repeating unit
a)
What type of polymer is it?
b)
Draw the monomer and identify the functional groups.
p. 4