Table 2. Effect of Aliphatic Dangling Chain Length on Molecular Weight Distribution, Glass Transition and Melting Temperature Measured by DSC, and Thermal Stability Measured by TGA.
| polymer | brush length (# of carbons) | Mn (kDa) | Mw (kDa) | Đ | Xn | DSC-Tg [10–20 °C min–1] (°C) | DSC-Tm [10 °C min–1] (°C) | TGA-2% wt (°C) |
|---|---|---|---|---|---|---|---|---|
| HDI_BDO | 0 | n.a.a | n.a.a | n.a.a | n.a.a | 40–43 | 165 | 281 |
| HDI_C4DA | 4 | 14.6 | 20.0 | 1.3 | 41 | 29–31 | n.a.b | 243 |
| HDI_C7DA | 7 | 21.6 | 29.0 | 1.3 | 49 | 23–26 | n.a.b | 280 |
| HDI_C8DA | 8 | 24.5 | 30.1 | 1.2 | 52 | 24–27 | n.a.b | 300 |
| HDI_C9DA | 9 | 15.6 | 21.3 | 1.3 | 32 | 19–27 | n.a.b | 298 |
| HDI_C12DA | 12 | 20.5 | 34.0 | 1.6 | 35 | 30–n.a.c | 46 | 312 |
| HDI_C18DA | 18 | n.a.a | n.a.a | n.a.a | n.a.a | n.a.c | 45 | 305 |
a
HDI_BDO and HDI_C18DA were not soluble in the available GPC solvents (THF, NMP).
b
HDI_C4DA, HDI_C7DA, HDI_C9DA, and HDI_C9DA did not present melting peaks.
c
HDI_C12DA and HDI_C18DA glass transitions overlapped with melting transitions.