Single-Mode Microwave Ovens as New Reaction Devices: Accelerating the Living Polymerization of 2-Ethyl-2-Oxazoline
-
Wiesbrock, Frank; Hoogenboom, Richard; Abeln, Caroline H.; Schubert, Ulrich S.
- Abstract:
- The ring-opening cationic polymerization of
2-ethyl-2-oxazoline was performed in a single-mode microwave
reactor as the first example of a microwave-assisted
living polymerization. The observed increase in reaction
rates by a factor of 350 (6 h!1 min) in the range from 80 to
190 8C could be attributed solely to a temperature effect as
was clearly shown by control experiments and the determined
activation energy. Because of the homogenous microwave
irradiation, the polymerization could be performed in bulk or
with drastically reduced solvent ratios (green chemistry).
- Year:
- 2004
- Type of Publication:
- Article
- Journal:
- Macromolecular Rapid Communications
- Volume:
- 25
- Pages:
- 1895 - 1899