A9 Condensation Polymers
1. Benzene-1,4-dicarboxylic acid and ethane-1,2-diol can react together to form a condensation polymer. This type of compound is useful in manufacturing textiles.
i. What name is given to this type of compound? ii. Complete the equation using two molecules of each monomer showing all the products of the reaction.
Figure 11.6
2. Write a balanced equation, using molecule(s) of your choice to show the formation of an addition polymer. 3. Nylon is another type of condensation polymer made from a dicarboxylic acid and a diamine:
Figure 11.7
Complete the equation using two molecules of each monomer showing all the products of the reaction.
4.
Figure 11.8
The diagram shows a section of the polymer Kevlar®. Kevlar is an exceptionally strong polyamide formed from the molecules 1,4-diaminonbenzene and benzene-1,4-dicarbonyl chloride the structures of which are shown below:
Figure 11.9
i. Write and equation using two molecules of each monomer to show how the polyamide chain is formed, showing all the products of the reaction. ii. Why Kevlar is so strong? iii. Kevlar is expensive to manufacture, partly because it is only soluble in concentrated sulphuric acid. Why does it dissolve in concentrated sulphuric acid? 5.
Figure 11.10
This diagram shows a section of a molecule of a polyamide. Draw diagrams of the monomer molecules that could be used to make this polyamide.
Copy link