| Tri block polymers | M. Wt. of PEG | Polymers A, B and C (g) | A, B, and C (mole) | Wt. of L-lactide (g) | L-lactide (mole) | DBU (µl) |
| AL10 | 2000 | 4.168 | 0.001 | 1.44 | 0.01 | 55 |
| AL25 | 2000 | 4.168 | 0.001 | 3.603 | 0.001 | 77 |
| AL50 | 2000 | 2.084 | 0.0005 | 3.603 | 0.025 | 112 |
| BL10 | 4000 | 8.166 | 0.001 | 1.44 | 0.01 | 90 |
| BL25 | 4000 | 8.166 | 0.001 | 3.603 | 0.025 | 116 |
| BL50 | 4000 | 4.083 | 0.0005 | 3.603 | 0.025 | 76 |
| CL10 | 10000 | 20.17 | 0.0005 | 1.44 | 0.005 | 212 |
| CL25 | 10000 | 20.17 | 0.0005 | 3.603 | 0.0125 | 234 |
| CL50 | 10000 | 10.08 | 0.0005 | 3.603 | 0.025 | 135 |