Characteristics of block copolymers PEtOx-SS-PLA and PEtOx-PLA.
Block copolymers | Theoretical Mn | M n a (1H NMR) | M n b (GPC) | PDIb (GPC) |
---|---|---|---|---|
PEtOx-SS-PLA 17 | 7000 | 7500 | 19 600 | 1.18 |
PEtOx-SS-PLA 34 | 10 000 | 10 000 | 28 500 | 1.34 |
PEtOx-SS-PLA 52 | 15 000 | 12 500 | 36 200 | 1.32 |
PEtOx-PLA 52 | 15 000 | 12 500 | 35 200 | 1.19 |
Determined by 1H NMR (400 MHz, CDCl3).
Determined by GPC (DMF was the eluent, 1.0 mL min−1, 50 °C, polystyrene standards).