Scale-up of microwave-assisted polymerizations in continuous-flow mode : cationic ring-opening polymerization of 2-ethyl-2-oxazoline

R.M. Paulus, T. Erdmenger, C.R. Becer, R. Hoogenboom, U.S. Schubert

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55 Citations (Scopus)
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Abstract

Microwave-assisted polymerizations is a growing field of interest because the use of microwave irradiation instead of thermal heating was demonstrated to result in faster, cleaner, and higher yielding reactions. To overcome the one-at-a-time nature of preparing polymerizations in single microwave vials and the possible scale-up method for microwave-assisted polymerizations, the use of continuous-flow reactions under microwave irradiation seems to be ideal. In this contribution, we report for the first time the use of different continuous-flow microwave reactors for polymerizations, using the cationic ring-opening polymerizations of 2-ethyl-2-oxazoline as a model system. In addition, the observed broader molecular-weight distributions were correlated to residence time distributions of the continuous-flow reactors that were determined using methyl orange as the flow marker
Original languageEnglish
Pages (from-to)484-491
JournalMacromolecular Rapid Communications
Volume28
Issue number4
DOIs
Publication statusPublished - 2007

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