Scale-Up of Microwave-Assisted Polymerizations in Continuous-Flow Mode: Cationic Ring-Opening Polymerization of 2-Ethyl-2-oxazoline
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Paulus, Renzo M.; Erdmenger, Tina; Becer, C. Remzi; Hoogenboom, Richard; Schubert, Ulrich S.
- 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.
- Year:
- 2007
- Type of Publication:
- Article
- Journal:
- Macromolecular Rapid Communications
- Volume:
- 28
- Pages:
- 484 - 491