Table 1.
The ratio of propagation to chain transfer kinetic constants (kp/kct) ratios for various acrylates reacting with butyl mercaptopropionate.
| Monomer | Copolymerization Ratio (Propagation to Acrylate/Chain transfer to thiol) (kp/kct) |
|---|---|
| Lauryl Acrylate | 0.9 ± 0.1 |
| Hexyl Acrylate | 1.0 ± 0.1 |
| Ethoxyethyl Acrylate | 1.5 ± 0.2 |
| Hexanediol Diacrylate | 1.4 ± 0.1 |
| Cyclic Carbonate Acrylate | 4.0 ± 0.2 |
| Ethyl Linear Carbonate Ethyl Acrylate | 3.0 ± 0.2 |
| Phenyl Carbonate Ethyl Acrylate | 2.8 ± 0.2 |
| Phenyl Carbamate Ethyl Acrylate | 3.4 ± 0.6 |
Polymerization conditions: light intensity = 5 mW/cm2, initiator concentration = 0.1 wt % DMPA, ambient temperature.