Table 1.
Biodegradable polymers for biomedical applications
| Polymer name | Melting point (°C) | Glass transition temperature(°C) | Modulus (Gpa)a | Degradation time (Month)b |
|---|---|---|---|---|
| PGA | 225–230 | 35–40 | 7.0 | 6 to 12 |
| L-PLA | 173–178 | 60–65 | 2.7 | >24 |
| D, L-PLA | Amorphous | 55–60 | 1.9 | 12 to 16 |
| PCL | 58–63 | (−65)–(−60) | 0.4 | > 24 |
| PDO | N/A | (−10)–0 | 1.5 | 6 to 12 |
| 85/15 PLGA | Amorphous | 50–55 | 2.4 | 5 to 6 |
| 75/25 PLGA | Amorphous | 50–55 | 2.0 | 4 to 5 |
| 65/35 PLGA | Amorphous | 45–50 | 2.0 | 3 to 4 |
| 50/50 PLGA | Amorphous | 45–50 | 2.0 | 1 to 2 |
tensile or flexural modulus
time to complete mass loss. Rate also depends on geometry.
PGA: poly(glycolide); PLA: poly(lactide); PCL: poly(ε-caprolactone); PDO: poly(dioxanone); PLGA: copolymer of PGA and DL-PLA, ratio is PLA/PGA.