Question

How can you differentiate between addition and condensation polymerisation?

Answer 1

In $\text{addition polymerization}$, the molecules of the same or different monomers add together to form a large polymer molecule.

$\text{Condensation polymerization}$ is a process in which two or more bi-functional molecules undergo a series of condensation reactions with the elimination of some simple molecules and leading to the formation of polymers. For example, ethylene is converted into polyethene by addition polymerization and Nylon-$6,6$ is prepared from hexamethylene diamine and adipic acid by condensation polymerization.