Table 3.
Functional Group (FG) Ratios of Three Different Monomers (AZ-2, AL-1, and AL-4) Used To Create an Off-Stoichiometric Resin with Excess Azide Functionality with the Resulting Azide Conversions and Material Properties Including Tg and Molecular Weight between Cross-Links (Mc) As Calculated from Rubber Elasticity Included
| AZ-2 monomer (FG eq) | AL-4 monomer (FG eq) | AL-1 monomer (FG eq) | theor azide conv (%) | measd azide conv (%) | Tg (°C) | Mc (g/mol) |
|---|---|---|---|---|---|---|
| 1 eq | 0.5 eq alk | 0.25 eq alk | 75 | 74 | 46 | ~85000 |
| 1 eq | 0.4 eq alk | 0.4 eq alk | 80 | 83 | 51 | ~20000 |
| 1 eq | 0.2 eq alk | 0.7 eq alk | 90 | 91 | 59 | ~9000 |
| 1 eq | 0 eq alk | 1 eq alk | 100 | ~99 | 67 | ~1600 |