Table 1.
Properties of the polymers.
| Polymer | Mwa (kDa) |
PDIa | Tgb (˚C) |
Tm1b (˚C) |
Tm2b (˚C) |
TDc (˚C) |
ETd (GPa) |
σyd (MPa) |
ηe (mPa.s) |
G’ Fold Changee |
%Mw
Retentionf |
|---|---|---|---|---|---|---|---|---|---|---|---|
| p(HTy) | 181 | 1.8 | 54 | - | - | 350 | 2.4(±0.3) | 38(±7) | 5×106 | 1.1 | - |
| HP | 143 | 1.7 | 50 | 131 | 147 | 320 | 2.1(±0.3) | 28(±3) | 5×105 | 3.5 | 88 |
| HP5BG | 141 | 1.7 | 46 | 125 | 141 | 330 | 1.9(±0.1) | 40(±3) | 3.3×102 | 4.0 | 70 |
| HP5GH | 126 | 1.6 | 47 | 128 | 143 | 320 | 2.2(±0.1) | 34(±6) | 1.8×103 | 4.0 | 18 |
| HP5GP | 129 | 1.6 | 50 | 127 | 144 | 320 | 2.3(±0.1) | 38(±2) | 2.4×103 | 4.0 | 18 |
a
From DMF GPC, relative to polystyrene standards.
b
From DSC measurements.
c
From TGA.
d
From tensile tests using compression molded films.
e
From melt rheology using compression molded films (η measured at 180 ˚C).
f
From hydrolytic degradation tests (8 week point) using DMF GPC.