Table 3.
# | Off-time (min) | Yield (mg) | % dead | Mw × 10−6 | Mn × 10−6 | Đ |
---|---|---|---|---|---|---|
1 | 0 | 770 | 0 | 1.61 | 1.15 | 1.40 |
2 | 10 | 565 | 27 | 1.23 | 0.94 | 1.31 |
3 | 30 | 360 | 54 | 1.80 | 1.28 | 1.41 |
4 | 60 | 110 | 86 | 1.60 | 1.10 | 1.46 |
PMAO-IP polymethylaluminoxane, GPC gel permeation chromatography, Mn number average molecular weight, Mw weight average molecular weight
Standard conditions: Catalyst 6 0.5 µmol, PMAO-IP 1750 equiv., toluene 25 mL, 100 equiv. ethylene added via syringe into solution; wait X minutes, then bubble ethylene directly into the solution. The molecular weight was determined by GPC in 1,2,4-trichlorobenzene