Question

Write any monomer used in terylene?

Answer 1

The monomer is the smallest unit of the polymer molecule. The polymer is the biggest molecule which contains repeating units of the monomers (small units). In nature all the polymers are made up of smaller units called monomers.
Complete step by step answer:
- In the question it is asked to write any monomer which is present in terylene.
- First we should know the structure of the terylene polymer.
- The structure of the terylene is going to contain two different monomeric units.
- Terylene is an example of a co-polymer.
- Means terylene is going to contain two different monomeric units.
- The monomeric units which are present in the terylene polymer are ethylene glycol and terephthalic acid.
- The other name of terephthalic acid is 1,4-benzene dicarboxylic acid.
- The structure of ethylene glycol and terephthalic acid are as follows.

- The polymer which is formed by the polymerization of ethylene glycol and terephthalic acid is as follows.

- We can see the structure of the terylene polymer in the above preparation and it contains the ethylene glycol and terephthalic acid.
- Therefore the names of the monomers in the terylene polymer are ethylene glycol and terephthalic acid.

Note: The bond which is going to be formed in between the monomer of ethylene glycol and terephthalic acid is an ester bond that is going to be formed after the polymerization reaction of the monomeric units.