Figures 9 and 10 show the corresponding profiles for number-and weight-average molecular weights, respectively.
Figure 23 shows profiles for number- and weight-average molecular weights at [TEMPO]/[BPO] = 0.
Ic], with the weight-average molecular weight
being the most important parameter for the fracture behavior.
Figure 10 shows the zero-shear viscosity data of all CRPP samples at three test temperatures as a function of weight-average molecular weight
To illustrate this effect, elongation at break for all process settings over the weight-average molecular weight
3, it can be seen that the weight-average molecular weight
of the polymers increases quickly to a constant in the start-up process of the polymerization, and the plant data are lower than the simulated data.
On the basis of the temperature and the weight-average molecular weight
in the ith iterative step, the zero shear viscosity in the (i + 1)th iterative step is calculated via Eqs.
A power-law constitutive equation is used to model the polymer viscosity, with temperature and weight-average molecular weight
dependent parameters, and a viscosity plateau at low strain rates:
Table 1 includes the number-and weight-average molecular weights
of the four polymers.