Answer: Caprolactam (ring-opening polymerisation).
- A Caprolactam (ring-opening polymerisation)
- B Hexamethylenediamine and adipic acid
- C Styrene
- D Ethylene glycol
Correct answer: A. Caprolactam (ring-opening polymerisation)
Explanation: Nylon-6 is formed by ring-opening polymerisation of caprolactam.
Addition polymerisation simply links monomers containing a double bond with nothing left over, while condensation polymerisation joins two different monomers through a reaction (often forming an ester or amide bond) that releases a small molecule like water at each step.
Concept context
Large molecules made of repeating monomer units. Covers addition and condensation polymerisation, natural and synthetic polymers (nylon, PVC, Bakelite, natural rubber), and their real-world industrial applications.