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Characteristics of PLA-PEG-PLA copolymer determined using proton nuclear magnetic resonance spectroscopy and gel permeation chromatography.
| NMR | GPC | ||||
|---|---|---|---|---|---|
| Copolymer | Mwa | Mnb | Mwc | Mnd | Polydispersitye (Mwc/Mnd) |
| PLA-PEG-PLA | 4500 | 4660 | 5022 | 4339 | 1.147 |
Mwa: Theoretical molecular weight of copolymer
Mnb: Number average molecular weight determined by NMR
Mwc: Weight average molecular weight determined by GPC
Mnd: Number average molecular weight determined by GPC
Polydispersity indexe: Determined by GPC
