Table 1. Physical Properties of the NDI-Based Conjugated Polymers.
| polymer | Mn (kDa)a | Mw (kDa)b | dispersityc | X̅nd | X̅we | Eg (eV)f |
|---|---|---|---|---|---|---|
| PNDIT2 (commercial) | 35.3 | 63.5 | 1.80 | 36.8 | 66.3 | 1.98 |
| PNDIT2 (synthesized) | 45.0 | 136.1 | 3.02 | 47.0 | 142.1 | 1.98 |
| DMP-PNDIT2 | 19.4 | 37.1 | 1.91 | 15.7 | 30.1 | 1.85 |
| E-PNDIT2 | 19.9 | 46.3 | 2.33 | 14.9 | 34.6 | 1.80 |
a
Number-average molecular weight.
b
Weight-average molecular weight.
c
Mw/Mn.
d
Number-average degree of polymerization (average number of monomer units per polymer chain).
e
Weight-average degree of polymerization.
f
HOMO–LUMO energy gap, calculated by DFT using B3LYP/6-31G*.