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Polymerization reactions that involve the removal of small molecules like water, or methanol are called condensation polymerization reactions.

The condensation reaction occurs between a nucleophilic center and an electrophilic center.

Polyesters, polyamides are examples of polymers formed by condensation polymerization.

Polyamides are synthetic polymers formed by the condensation polymerization between acid chlorides and amines.

Hydrochloric acid molecules are removed as a byproduct during the polymerization reaction.

An example of polyamide is nylon, a strong and durable polymer that resembles silk.

Nylons are named based on the number of carbon atoms in the acid chloride and amine that condenses to form the polymer.

The first number represents the amine and the second number represents the acid chloride.

Therefore, the monomers of nylon-6,10 are amines with 6 carbon atoms and an acid chloride with 10 carbon atoms

That is, nylon-6,10 is a polymer of sebacoyl chloride and hexamethylene diamine.

Retro analysis of nylon-6,10