Table 2.
DSC data of the polymers
| Polymer | T g/ °C | T m/ °C | ΔH/J g−1 | |||
|---|---|---|---|---|---|---|
| Ia | IIa | Ia | IIa | Ia | IIa | |
| OSOb | 89 | 105; 159, 168 | 1.0; 32.1 | |||
| OSO-40 | 41 | 46 | ||||
| OSO-50 | 30 | 32 | 178 | 1.3 | ||
| OSO-60 | 21 | 22 | 160, 187 | 2.5 | ||
| SOSb | 64 | 104; 129; 195 | 189 | 0.7; 3.2; 40.3 | 37.7 | |
| SOS-40 | 10 | 35 | 178, 191 | 24.4 | ||
| SOS-50 | 23 | 25 | 117 | 9.4 | ||
| SOS-60 | 16 | 15 | ||||
| SSSb | 63 | 107; 138, 169, 184 | 182 | 0.6; 41.1 | 35.3 | |
| SSS-40 | 34 | 36 | 155 | 8.1 | ||
| SSS-50 | 24 | 26 | 128 | 3.7 | ||
| SSS-60 | 18 | 16 | 121 | 1.0 | ||
| PHCD | –69 | –63 | 10, 30 | 31 | 55.5 | 37.2 |
aI and II, first and second heating scans, respectively
bOSO, RPUR from diol OSOE; SOS, RPUR from diol SOSE; SSS, RPUR from diol SSSE