Table 2. Molecular Weights and Dispersity of PolyIBVE Side Chains Cleaved from the Graft Copolymer PolyPhA-g-polyIBVE.
| reaction time (h) | IBVE conversion (%)a | Mn,theoryb (g mol–1) | Mn,cleavedc (g mol–1) | Mw/Mnc |
|---|---|---|---|---|
| 1 | 27 | 2700 | 3800 | 1.37 |
| 2 | 40 | 4000 | 5000 | 1.30 |
| 3 | 76 | 7600 | 9900 | 1.16 |
| 12 | 98 | 9800 | 12,000 | 1.07 |
Determined by 1H NMR.
Calculated from Mn,theory = ([IBVE]0/[PhAVE-AcOH*]0 × (molecular weight)IBVE × (conversion)IBVE)
Estimated by PSt-calibrated SEC in THF.