Synthesis and Characterization of a Series of Diverse Poly(2-oxazoline)s

Kempe, Kristian; Lobert, Matthias; Hoogenboom, Richard; Schubert, Ulrich S.

Abstract:

This article describes the synthesis and characterization of a variety of new poly(2-oxazoline)s. With regard to functional polymers, 2-oxazolines represent an interesting class of monomers because of the easy variation of the substituent in 2-position. Starting from the corresponding nitriles, different 2-oxazolines were obtained containing a diverse set of 2-substituents, including thioether bonds (M11), trifluoromethyl groups (M8, M10), and alkyl- or aryl groups (M1–M7). The subsequent polymerization of the majority of these monomers proceeded in a living manner, which was demonstrated by linear first-order kinetics, a linear increase of molar mass with conversion, and relatively narrow molar mass distributions. In addition, selected thermal and surface properties of the polymers were studied utilizing DSC and contact-angle measurements to determine the effects of different 2-substituents on the macroscopic properties.

Year:

2009

Type of Publication:

Article

Keywords:

kinetic study; living polymerization; 2-oxazolines; poly 2-oxazolines; structure property relations; surface energy; thermal transitions

Journal:

Journal of Polymer Science: Part A: Polymer Chemistry

Volume:

47

Pages:

3829 - 3838