Microwave-assisted synthesis and properties of a series of poly(2-alkyl-2-oxazoline)s
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Hoogenboom, Richard; Fijten, Martin W. M.; Thijs, Hanneke M. L.; van Lankvelt, Bart M.; Schubert, Ulrich S.
- Abstract:
- Microwave-assisted organic synthesis is a quickly expanding field of research. The
fast non-contact (super)heating of the reaction mixtures has already resulted in many examples
of increased reaction rates and improved yields. However, the number of investigations focusing
on microwave-assisted polymerizations, and especially living/controlled polymerizations, is still
limited. Following our recent success in accelerating the cationic ring-opening polymerization of
2-oxazolines, we report here our studies on the cationic polymerization of a series of linear 2-alkyl-2-
oxazolines under microwave irradiation. The effect of chain length on the polymerization kinetics was
investigated. Moreover, the microwave polymerization of 2-ethyl-2-oxazoline was further investigated
by 1H-NMR spectroscopy to determine the active species during the polymerization. Besides the
microwave polymerization of the linear 2-alkyl-2-oxazoline monomers, the thermal and surface
properties of the resulting polymers were investigated by DSC and contact-angle measurements to
study the effect of side-chain length on the polymer properties.
- Year:
- 2005
- Type of Publication:
- Article
- Journal:
- Designed Monomers and Polymers
- Volume:
- 8
- Number:
- 6
- Pages:
- 659 - 671