Final answer:
Bulk polymerization in chemistry can have process difficulties such as the production of chains with a range of molecular weights, the presence of residual monomers, and the formation of polymers through functional group transformations. These challenges can be controlled by adjusting process parameters and regulating the production of byproducts.
Step-by-step explanation:
In bulk polymerization, there are several process difficulties that can arise. One common difficulty is the production of chains with a range of molecular weights, which can be controlled by adjusting the pressure and temperature of the process. Another challenge is the presence of residual monomer, which is the unreacted monomer that remains in the finished product.
This can be a concern if the residual monomer is a known carcinogen. Additionally, bulk polymerization can sometimes result in the formation of polymers through functional group transformations of reactants, which can lead to the production of byproducts.