Homepolymers What is meant by functionality of a monomer. bySIKHOO SAB -June 14, 2022 0 Ans-: Functionality means the number of bonding (or reactive) sites in a given molecule. The number of reactive functional groups (like –NH2 , –OH, –COOH, –NCO , –SH etc. ) per molecule of the compound defines its functionality. Tags polymers Facebook Twitter