The reaction is exothermic and a wide range of molecular masses are produced.
Bulk polymerization is carried out in the absence of any solvent or dispersant and is thus the simplest in terms of formulation.
Due to dormant nature of the system, the Trommsdorff effect is significantly present, which in turn leads to longer chains and tougher material.
In some applications, the completed polymer melt is transferred from the reactor using a gear pump or applying moderate external pressure.
It differs from the solution polymerization in a way that the monomer itself acts as a solvent.