Table 2. Apparent Rate Constant (kpapp) at Different Temperatures for AOMEC and εCL during Copolymerization Initiated by Benzyl Alcohol/TBD or P2-t-Bu.
| temperature [°C] | catalyst | [M]a:[I]:[Cat.] | kpapp(AOMEC)b [s–1] | kpapp(εCL)b [s–1] |
|---|---|---|---|---|
| –40 | TBD | [200]:[1]:[2.5] | 25 | 0.064 |
| 30 | TBD | [200]:[1]:[2.5] | 17.1 | 0.35 |
| 100 | TBD | [200]:[1]:[2.5] | 630 | 65.4 |
| 170 | TBD | [200]:[1]:[2.5] | 190 | 102 |
| 30 | P2-t-Bu | [400]:[1]:[0.5] | 101.9 | 21.5 |
[M], M = nAOMEC + nεCL, and nAOMEC/nεCL = 1.
For determination of kpapp values see Supporting Information figure S1–S5.