Table 5.
Characteristics of copolymer PTMC-PLA-PTMC synthesised with and without protector (α-methylstyrene).
| Protector | Mn (SEC), Da, Mn/Mw | PLA crystallinity (%) and (melting temperature (°C)) | Ratio L-lactide/trimethylencarbonate (% mol by 1H NMR) | PLA segment length, monomer units |
|---|---|---|---|---|
| With | 64150 (1,46) | 33.5 (135.2) | 45.7/54.3 | 11.5 |
| Without | 42030 (1,58) | — | 31.1/68.9 | 2.6 |