Question

1. Give the monomeric repeating units of nylon 6 and nylon 6, 6.

2. Differentiate between addition polymerisation and condensation polymerization.

Answer 1

1. monomeric repeating units: 

1. Nylon – 6 – Caprolactam 

2. Nylon – 66 – Adipic acid, Hexamethylene diamine 

2. Difference between addition polymerisation and condensation polymerization:

Addition polymer: Simple monomer units combine together to form polymer.

Example: polythene.

Condensation polymer:

Simple monomer units combine together to form polymer followed by the removal of small molecules like H₂O, NH₃ etc.

Example: Nylon-6,6,