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Issue 20, 2015
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Improved photo-induced cobalt-mediated radical polymerization in continuous flow photoreactors

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Abstract

The implementation of cobalt-mediated radical polymerization (CMRP) for continuous microreactor synthesis is described. We demonstrate how the utilization of flow photoreactors allows the speed up of the polymerization of vinyl acetate (VAc) under UV irradiation without loss of polymerization control. Microfluidics under UV irradiation has also been successfully implemented for the copolymerization of VAc with a less reactive olefin 1-octene (1-Oct). Reactivity ratios were deduced for this copolymerization system, and poly(VAc-co-1-Oct) copolymers containing up to 50 mol% of 1-Oct were synthesized. To the best of our knowledge, this is the first report on a photopolymerization where continuous flow techniques not only led to an improvement of reaction rates and dispersity, but also led to the avoidance of significant side-products that were observed in batch processing.

Graphical abstract: Improved photo-induced cobalt-mediated radical polymerization in continuous flow photoreactors

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Supplementary files

Article information


Submitted
25 Feb 2015
Accepted
02 Apr 2015
First published
07 Apr 2015

Polym. Chem., 2015,6, 3847-3857
Article type
Paper

Improved photo-induced cobalt-mediated radical polymerization in continuous flow photoreactors

A. Kermagoret, B. Wenn, A. Debuigne, C. Jérôme, T. Junkers and C. Detrembleur, Polym. Chem., 2015, 6, 3847
DOI: 10.1039/C5PY00299K

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