Table 4. Values of Thermal Transitions Studied by DSC for PCL/PEG8 Blends Spun via SBS with Variation in Ibuprofen Concentration.
| sample | first heat cycle | second heat cycle | Xc (%) | |||
|---|---|---|---|---|---|---|
| Tm | Hm | Tc | Tm | Hm | ||
| PCL | 55.4 | 123 | 51.4 | 117 | 77.13 | |
| PCL/PEG8 | 51.1 | 116 | –9.1 | 51.3 | 118 | 77.79 |
| PCL/PEG8-05 | 56.2 | 142 | –10.6 | 50.6 | 141 | 92.85 |
| PCL/PEG8-15 | 55.1 | 147 | –6.4 | 48.3 | 108 | |
| PCL/PEG8-30 | 50.6 | 144 | –9.0 | 51.0 | 71.6 | |