Hexamethylene diamine adipate is the monomer used to produce nylon-6,6 through polycondensation. It is formed by reacting:
- Hexamethylene diamine (\( C_6H_{16}N_2 \)): A compound with two amine (-NH2) groups.
- Adipic acid (\( C_6H_{10}O_4 \)): A dicarboxylic acid with two -COOH groups.
These two molecules react to form the monomer by combining one -NH2 group from hexamethylene diamine with one -COOH group from adipic acid, eliminating a water molecule.
