Table 1 Survey on the composition of mPEG-PLAs
Feed ratio mPEG/DL-LA | mPEGx-PLAy | M w a | M n b | PIc | M n(mPEG) | M n(PLA) | Found ratio mPEG/PLA |
|---|---|---|---|---|---|---|---|
2:1 | mPEG5-PLA2.5 | 9,300 | 7,500 | 1.16 | 5,000 | 2,450 | 67:33 |
1:1 | mPEG5-PLA5 | 13,500 | 11,500 | 1.26 | 5,000 | 4,560 | 52:48 |
1:2 | mPEG5-PLA10 | 19,600 | 13,800 | 1.54 | 5,000 | 9,650 | 34:66 |
1:3 | mPEG5-PLA15 | 25,300 | 16,200 | 1.66 | 5,000 | 15,060 | 25:75 |