Abstract
The influence of ambient laboratory light from common fluorescent lamps on AGET, ARGET, and classical ATRP reactions was investigated and significant differences were found except for ARGET ATRP.
Highlights
We reported on photoinduced atom transfer radical polymerization (ATRP) using a household fluorescent lamp as the light source
Results implied that typical laboratory light might have a considerable impact on the ATRP reaction as fluorescent lamps are commonly used for ceiling and fume hood illumination
We show the influence of ambient laboratory light on Activator generated by electron transfer (AGET), Activator regenerated by electron transfer (ARGET), and classical ATRP reactions
Summary
Many other copper complexes can mediate photoredox reactions and fluorescent lamps are typical light sources in a chemical fume hood, we This initiated a recent study by Matyjaszewski et al.[15] on the contribution of photochemistry in activator regeneration in ATRP. 3–5 m from the vial) (L, Fig. 1a) and under hood light illumination with the ceiling lights and two fluorescent lamps in the hood on (type Master TL-D 58W/840, Philips® at a distance of 1.4 m to the reaction vial) (H, Fig. 1b) These illumination scenarios were chosen to reflect non-standardized but common light settings in an average chemical laboratory and to allow for comparison with previous reports on photoinduced ATRP14 and ICAR ATRP.[15] With a digital lux meter (Luzchem) a light intensity of 5.35 ± 0.15 mW cm−2 for illumination scenario “L” and 6.19 ± 0.29 mW cm−2 for “H” was determined. We performed ATRP with MMA as the monomer at 55 °C with a quite standard or “classical” ATRP
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