Figure 4 Mass distribution of polybutadiene considering only
one catalytic site.
It can be seen in Figure 4 that the molar mass distribution considering
only a single catalytic site did not present bimodality, as expected,
since the presence of only one active center generates only a group of
polymers following reactions with fixed kinetic constants. In addition,
a polydispersity index of 2.02 is observed, something very similar to a
step-growth polymerization process following the Flory distribution,
which is expected for a catalyst with only one active center .
The average molar masses are of the order of 3.61x104and 7.31x104 for \(M_{n}\) and\(M_{w}\), respectively, which are considered low
average molar masses considering a polymerization process in
1,3-butadiene solution . In Figure 5, the process simulation can be seen
considering two active centres.