Table 4.
Molecular weight and PDI for hyperbranched polyester modified with dithiothreitol (DTT) as a function of size (i.e., generation).a
| Polyesters | Mn Theoreticalb (g mol−1) | Mn Experimentalc (g mol−1) | PDI |
|---|---|---|---|
| G2-HP | 1179 | 1700 ± 180 | 1.32 ± 0.02 |
| G2-HP-DTT | 2986 | 2530 ± 580 | 1.39 ± 0.13 |
| G3-HP | 2573 | 2820 ± 270 | 1.44 ± 0.13 |
| G3-HP-DTT | 4950 | 4430 ± 260 | 1.28 ± 0.12 |
| G4-HP | 5359 | 3570 ± 420 | 1.56 ± 0.11 |
| G4-HP-DTT | 9525 | 6240 ± 980 | 1.12 ± 0.00 |
a
n ≥ 3 separate syntheses.
b
Theoretical molar mass of thiol-modified HP derived from the experimental molar mass of HP and corresponding amount of dithiols modification for each polyesters.
c
Molecular weight determined by GPC.