Table 3. Comparison of Oxone/Acetone with Performic Acid for the Epoxidation of Butyl Rubber.
| run | butyl rubber (g) | temp. (°C) | acetone (mL) | Oxone (g) | NaHCO3 (g) | 10 wt % PFA (mL) | percentage of epoxide (%)b |
|---|---|---|---|---|---|---|---|
| 1a | 5.0 | 23 | 8.0 | 2.35 | 1.28 | 70 | |
| 6 | 5.0 | 23 | 6.3 | 36 |
Oxone and NaHCO3 was added by single addition.
The reaction stopped at 60 min reaction time.