Table 1.
Molecular weight of mPEG-PLGA-PPA copolymers.
| Polymers | Feed Molar Ratio a | Resultant Molar Ratio b | Mn, GPC c (g/mol) | Mn, Th d (g/mol) | PDI, GPC c |
|---|---|---|---|---|---|
| mPEG44-PLGA9-PPA7 | 1/0.8 | 1/0.9 | 5398 | 4237 | 1.06 |
| mPEG44-PLGA9-PPA9 | 1/1.0 | 1/1.2 | 5550 | 4502 | 1.04 |
| mPEG44-PLGA9-PPA14 | 1/1.5 | 1/1.6 | 6341 | 5237 | 1.04 |
| mPEG44-PLGA9-PPA18 | 1/2.0 | 1/2.1 | 7432 | 5825 | 1.08 |
| mPEG44-PLGA20-PPA18 | 1/0.9 | 1/1.1 | 8095 | 7266 | 1.12 |
a Feed molar ratio of BLG-NCA/Phe-NCA. b Resultant molar ratio of PLGA/PPA calculated by 1H NMR. c Determined by gel penetration chromatography (GPC). d Theory values.