Table 1.
Number of hydroxy acid monomers per macromer (nX), number average molecular weight (Mn ), monomer to PEG molar feed ratio, average number of hydroxy acid monomers per macromer arm, and average number of acrylates per macromere arm for SPEXA macromers.
| Macromonomer | M̄n (±100) | Monomer/PEG feed molar ratio | monomers per end group (±0.1) | acrylates per end group (±0.05) |
|---|---|---|---|---|
| SPEXA-nX0 | 5300 | 0 | 0 | 0.85 |
| SPECA-nC2.8 | 5500 | 5 | 0.7 | 0.85 |
| SPECA-nC4.8 | 5700 | 7.5 | 1.2 | 0.81 |
| SPECA-nC7.2 | 6000 | 10 | 1.8 | 0.78 |
| SPECA-nC11.2 | 6400 | 15 | 2.8 | 0.75 |
| SPEDA-nD2.4 | 5400 | 5 | 0.6 | 0.82 |
| SPEDA-nD4.4 | 5600 | 7.5 | 1.1 | 0.79 |
| SPEDA-nD6.8 | 5900 | 10 | 1.7 | 0.75 |
| SPEDA-nD11.6 | 6300 | 15 | 2.9 | 0.73 |
| SPEGA-nG2.4 | 5600 | 5 | 0.8 | 0.87 |
| SPEGA-nG4.4 | 5700 | 7.5 | 1.2 | 0.82 |
| SPEGA-nG6.4 | 5900 | 10 | 1.6 | 0.81 |
| SPEGA-nG11.2 | 6500 | 15 | 2.8 | 0.78 |
| SPELA-nL3.2 | 5700 | 5 | 0.8 | 0.86 |
| SPELA-nL4.4 | 5800 | 7.5 | 1.1 | 0.83 |
| SPELA-nL6.4 | 6200 | 10 | 1.6 | 0.82 |
| SPELA-nL11.6 | 6900 | 15 | 2.9 | 0.74 |
| LPELA-nL3.6 | 5200 | 5 | 1.8 | 0.85 |
| LPELA-nL7.4 | 5800 | 10 | 3.7 | 0.87 |
| LPELA-nL9.6 | 6100 | 15 | 4.8 | 0.77 |
| LPELA-nL14.8 | 6800 | 20 | 7.4 | 0.71 |