Which term describes the process of monomer units joining to form polymers?

• A. Initiator
• B. Catalyst
• C. Polymerisation
• D. Oligomerisation

Answer: (C)

Polymerisation is the process where small monomer units join together to form long polymer chains, which is what creates the solid polymer used in nail enhancements. This term specifically describes the building of polymers from monomers. An initiator is the substance that starts the reaction (generates reactive species to begin chain growth), and a catalyst speeds up the reaction but doesn’t define the process itself. Oligomerisation refers to forming short chains called oligomers rather than the full, longer polymer chains, so it isn’t the term for forming polymers in general.