Table 1.
ATRP polymerization of MMA in DMF in a flow microreactor using LEDs irradiationa.
| Entry | Catalyst | Initiator/additive | Polymerization conditionsa | LEDs | Conv. (%)b | Time (min) | Mn theoc | Mnd | Ðd |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Ru(bpy)3Cl2 | EBiB/i-Pr2NEt | 200:1:0.01:10 | Blue | 86 | 430 | 17,200 | 20,600 | 1.96 |
| 2e | Eosin Y | EBiB/i-Pr2NEt | 200:1:0.01:10 | Green | 54 | 360 | 11,000 | 24,300 | 1.64 |
| 3 | Eosin Y | EBiB/i-Pr2NEt | 200:1:0.01:10 | Green | 70 | 216 | 14,000 | 25,000 | 1.58 |
| 4 | Eosin Y | EBiB/i-Pr2NEt | 200:1:0.05:10 | Green | 43 | 216 | 8,600 | 18,000 | 1.86 |
| 5 | Eosin Y | EBiB/i-Pr2Net | 200:1:0.003:10 | Green | 50 | 216 | 10,000 | 17,600 | 1.85 |
| 6 | Eosin Y | EBPA/i-Pr2NEt | 200:1:0.01:10 | Green | 91 | 180 | 18,000 | 18,000 | 1.42 |
a
Polymerization conditions: [MMA]: [initiator]: [catalyst]:[additive] = 200:1:x:y in DMF at RT in a microreactor illuminated with LEDs.
b
Determined by 1H NMR.
c
Mntheo = ([MMA]/[Initiator] × conv. × MMMA) + MInitiator.
d
Determined by GPC.
e
Performed in batch.