Table 2.
Characteristics of triblock copolymers synthesised in the presence of α-methylstyrene.
| N | Molar ratio α-methyl styrene : Sn(Oct)2 | Mn (SEC), Da, (Mn/Mw) | Crystallinity (%) and (melting temperature (°C)) | |
|---|---|---|---|---|
| PCL | PLA | |||
| 1 | 2.5 | 63,231 (1.41) | 32.5 (57.9) | 52.7 (164.6) |
| 2 | 25 | 75,981 (1.58) | 28.1 (51.9) | 39.1 (164.0) |
| 3 | 125 | 66,751 (1.50) | 0 | 28.0 (142.0) |
| 4 | 250 | 53,175 (1.51) | 43.8 (52.4) | 52.6 (165.3) |
| 5∗ | 2500 | 39,584 (1.54) | 14.6 (43.2) | 39.7 (159.2) |
| 6 | No protector | 26,583 (1.72) | — | — |
*Reaction performed without solvent.