| NdV3
|
Neodymium versatate. |
| DIBAH |
Diisobutylaluminum hydrade. |
| Me2SiCl2
|
Dimethyldichlorosilane. |
|
Np
|
Number of polymer chains per neodymium atom. |
|
M
|
β-myrcene monomer. |
|
C-hex
|
Cyclohexane. |
| [M]0
|
β-myrcene monomer concentration at t = 0. |
|
Nd
|
Neodymium catalyst. |
| [Nd]0
|
Neodymium catalyst concentration at t = 0. |
|
AlRx
|
Alkyl-aluminum cocatalyst (chain transfer agent during polymerization). |
| [AlRx]0
|
Chain transfer agent concentration at t= 0. |
|
RHCl2
|
Halide donor. |
| [RHCl2]0
|
Halide donor concentration at t= 0. |
|
Mn
|
Number average molecular weight. |
|
Mw
|
Weight average molecular weight. |
|
Mn
x
|
Number average molecular weight generated by the active centers of type x (x = I or II). |
|
Mw
x
|
Weight average molecular weight generated by the active centers of type x (x= I or II). |
|
|
Dispersity index. |
| MWD |
Molecular Weight Distribution. |
|
C I*, C II*
|
Active centers of type I and of type II, * denotes highly unstable species. |
|
PnI, PnII
|
Type I and Type II propagating polymer chain of length n, active chains. |
|
Pn Al I
|
Inactive chains for monomer insertion located on aluminum, dormant polymer of type I. |
|
Pn Al II
|
Inactive chains for monomer insertion located on aluminum, dormant species of type II. |
|
DnI, DnII
|
Type I and Type II inactive species, dead polymer. |
|
kapp
|
Apparent rate constant of propagation. |
|
R
|
Universal gas constant. |
|
T
|
Absolute temperature. |
|
A0
|
Pre-exponential factor. |
|
Ea
|
Activation energy. |
|
kin,I
|
Initiation rate constant for type I species. |
|
kin,II
|
Initiation rate constant for type II species. |
|
kp,I
|
Propagation rate constant for type I species. |
|
kp,II
|
Propagation rate constant for type II species. |
|
ktrc,I
|
Chain transfer to cocatalyst rate constant for type I species. |
|
ktrc,II
|
Chain transfer to cocatalyst rate constant for type II species. |
|
kda1,I
|
Deactivation rate constant of type I active centers. |
|
kda1,II
|
Deactivation rate constant of type II active centers. |
|
kda1,I
|
Deactivation rate constant of the type I propagating polymer. |
|
kda1,II
|
Deactivation rate constant of the type II propagating polymer. |
|
ktr
|
Rate constant for the reversible transfer forward. |
|
ktr1
|
Rate constant for the reversible transfer backward. |
|
|
k-th moment for the active polymer of type I. |
|
|
k-th moment for the dead polymer of type II. |
|
|
k-th moment for the active polymer of type II. |
|
|
k-th moment for the dormant polymer of type II. |
|
|
k-th moment for the dead polymer of type II. |
|
|
“Experimental” average number of polymer chains produced by single neodymium atom. |
|
|
Number average molecular weight obtained if each neodymium atom were to generate a polymer chain. |
|
|
Number average molecular weight experimentally determined by GPC. |
|
|
Number average molecular weight obtained by the model. |
| EGF |
End-Goup Functionality. |
| EGFII
|
End-Goup Functionality for polymer chains of Type II.
|
|
Rj2
|
Coefficient of determination. |
|
|
Sum of squared deviations between predicted values at the time i and the average experimental values for a specific characteristic j.
|
|
SSE
|
Sum of squared errors. |
|
S
|
Standard deviation. |
|
|
Sum of squared deviations between predicted values at the time i and the experimental values at the time i for a specific characteristic j.
|
|
|
Sum of squared deviations between predicted values at the time i and the average experimental values for a specific characteristic j.
|
| Log1M
|
The logarithm of the molecular weight corresponding to the slice retention time (averaged). |
|
|
Normalized distribution of molecular weights, derivative of Weight fraction with respect to logarithm of molar Mass. |