Star-shaped Poly(2-oxazoline)s by Dendrimer Endcapping

Lambermont-Thijs, Hanneke M. L.; Fijten, Martin W. M.; Schubert, Ulrich S.; Hoogenboom, Richard

Abstract:

The synthesis of star-shaped poly(2-ethyl-2-oxazoline) is reported by direct end-capping of the living polymer chains with dendritic multiamines. The end-capping kinetics after addition of a first generation polypropylenimine dendrimer are discussed based on monitoring by size exclusion chromatography, revealing less efficient end-capping with larger poly(2-ethyl-2-oxazoline) chains and increasing dendrimer generation. In addition, it is demonstrated that the solution viscosity and cloud point temperature of the star-shaped polymers are much less affected by chain length compared with their linear analogues.

Year:

2011

Type of Publication:

Article

Journal:

Australian Journal of Chemistry

Volume:

64

Pages:

1026 - 1032