Synthesis of P(Stm-co-DMAEAk) macroCTA via RAFT polymerizationa.
| Run no. | f DMAEA b | x St c | x DMAEA c | Yieldd (%) | k e | m e | M n,NMR f | M n (Mw/Mn)g |
|---|---|---|---|---|---|---|---|---|
| 1 | 0.40 | 0.29 | 0.13 | 7 | 16 | 12 | 3400 | 2800 (1.10) |
| 2 | 0 | 0.27 | — | 12 | 37 | 0 | 4300 | 3700 (1.08) |
a
Bulk polymerization; [St + DMAEA]0/[CF3-CPADB]0/[AIBN]0 = 200/1/0.1; polym. temp., 60 °C; polym. time, 24 h.
b
Mole fraction of DMAEA in the feed.
c
Conversions of St (xSt) and DMAEA (xDMAEA) determined by 1H NMR spectroscopy.
d
Isolated yield.
e
Number average degree of polymerization of St (m) and DMAEA (k) determined by 1H and 19F NMR spectroscopies using cross reference.
f
Number average molecular mass calculated using the k and m values considering the mass of CF3-CPADB.
g
Number average molecular mass and dispersity determined by SEC using polystyrene standards.