Table 1. Characterization of Polymers Synthesized by RAFT Polymerization Used in This Study.
| polymer | [M]:[CTA]a | conversion (%)b | Mn(th) (g mol–1)c | Mn(SEC) (g mol–1)d | Mw/Mnd |
|---|---|---|---|---|---|
| PHEA10 | 10 | 78 | 1600 | 2800 | 1.17 |
| PHEA25 | 25 | 81 | 3300 | 4900 | 1.21 |
| PHEA50 | 50 | 80 | 6200 | 7800 | 1.22 |
| PHEA100 | 100 | 88 | 11900 | 13600 | 1.17 |
| PDMAEMA10 | 10 | 79 | 2000 | 6300 | 1.48 |
| PDMAEMA25 | 25 | 84 | 4300 | 10100 | 1.63 |
| PDMAEMA50 | 50 | 86 | 8300 | 16300 | 1.82 |
| PDMAEMA100 | 100 | 89 | 16100 | 22500 | 1.71 |
a
Feed ratio of monomer to chain transfer agent.
b
Determined by 1H NMR spectroscopy.
c
Theoretical number-average molecular weight, calculated from the feed ratio and percent conversion.
d
Determined by size-exclusion chromatography in dimethylformamide (DMF) using poly(methyl methacrylate) standards. Mw, weight-average molecular weight; Mn, number-average molecular weight.