Table 2.
Molecular weight calculated from 1H-NMR and GPC
| Polymer | Mn × 10−3 (1H-NMR) | Mn × 10−3 (GPC) | Mw × 10−3 (GPC) | Mw/Mn |
|---|---|---|---|---|
| mPEG2000-PDLLA2000-PBLG1095 | 5.0 | 4.3 | 5.6 | 1.29 |
| mPEG2000-PDLLA2000-PBLL1230 | 5.1 | 4.8 | 5.8 | 1.21 |
| mPEG2000-PDLLA2000-PLG735 | 4.6 | 4.1 | 5.1 | 1.24 |
| mPEG2000-PDLLA2000-PLL730 | 4.6 | 4.3 | 5.7 | 1.33 |
Notes: Mn indicates number-average molecular weight; Mw indicates weight-average molecular weight, Mw/Mn indicates the polydispersity of molecular weight distribution.
Abbreviations: GPC, gel permeation chromatography; mPEG, methoxy polyethylene glycol; NMR, nuclear magnetic resonance; PLG, polyglutamate; PLL, poly(l-lysine); PDLLA, poly(d,l-lactic acid); PBLG, poly(γ-benzyl-l-glutamate); PBLL, poly(γ-benzyl-l-lysine).