Molecular weight is influenced by the monomer concentration. Usually the lower the concentration of monomers the lower the molecular weight of the polymer formed. High concentrations of monomer generate a greater chance that the monomers will come into contact with a propagating chain, and therefore reducing the possibility of chain termination by the solvent or any other chain terminating species which may be present. Hence, the resulting polymer will have a higher molecular weight and higher viscosity.
Monomer Concentration
5 июля, 2015 Malyar