| Time (hours) | Conv. (%)a |
M
n
b
| PDIb |
P
r
c
|
---|
Ti(1)(OiPr)2 | 24 | 23 | 1250 | 1.63 | -d |
Ti(2)(OiPr)2 | 24 | 8 | - | - | -d |
Ti(3)(OiPr)2 | 24 | 27 | 4700 | 1.17 | -d |
Ti(4)(OiPr)2 | 24 | 12 | 700 | 1.01 | -d |
Ti(5)(OiPr)2 | 24 | 50 | 8200 | 1.06 | 0.44 |
Ti(6)(OiPr)2 | 24 | 32 | 6950 | 1.11 | 0.44 |
- aConversion ascertained by 1H NMR spectroscopy. bMolecular weight and PDI determined by GPC (THF) using polystyrene standards. cP
r
as calculated from 1H NMR homonuclear decoupled spectroscopy in CDCl3.dP
r
could not be accurately determined, strong tacticity was not observed.