Table 2. 1/BEMP Catalyzed ROP of Cyclic Monomersa.
| monomer | [M]0/[I]0 | time (h) | % conv | Mn(GPC) | Mw/Mn |
|---|---|---|---|---|---|
| BLb | 100 | 48 | 0 | ||
| VL | 50 | 0.75 | 88 | 6200 | 1.05 |
| VL | 100 | 2 | 92 | 14600 | 1.03 |
| VL | 200 | 3 | 83 | 32200 | 1.01 |
| VL | 500 | 5 | 98 | 92600 | 1.01 |
| CLb | 50 | 42 | 98 | 8900 | 1.03 |
| CLb | 100 | 75 | 94 | 17000 | 1.02 |
| TMCb | 50 | 0.2 | 99 | 2800 | 1.07 |
| TMCb | 100 | 0.3 | 97 | 7600 | 1.03 |
Reaction conditions: monomer (2 M, 100 mg), pyrenebutanol, 5 mol % BEMP and 5 mol % 1. Reactions conducted in dry toluene in a glovebox (N2) and quenched at the given time by the addition of 2 mol equiv of benzoic acid to BEMP.
Reactions performed in C6D6.