Which one of the following is an example of step growth polymerisation?

Step-by-step solution

Step growth polymerization, also known as condensation polymerization, involves the reaction of bifunctional or polyfunctional monomers with the elimination of small molecules like water, alcohol, or ammonia. In this process, the polymer chain grows by the reaction of any two species present in the mixture. Nylon 6,6 is formed by the condensation reaction between hexamethylenediamine ( H₂N(CH₂)₆NH₂ ) and adipic acid ( HOOC(CH₂)₄COOH ). This reaction proceeds with the elimination of water molecules, which is a chara