Solvent Responsive Micelles Based on Block and Gradient Copoly(2-oxazoline)s

Hoogenboom, Richard; Thijs, Hanneke M. L.; Wouters, Daan; Höppener, Stephanie; Schubert, Ulrich S.

Abstract:

Here, we investigated the solvent responsiveness of block and gradient copoly(2-oxazoline)s in binary water-ethanol mixtures to address the effect of monomer distribution. In addition, we demonstrate the formation of complex selfassembled structures, including toroids and Y-junctions, from a simple amphiphilic statistical copolymer in binary waterethanol solvent mixtures. The structures of the studied amphiphilic poly(2-methyl-2-oxazoline)50-block-poly(2-phenyl-2- oxazoline)50 (pMeOx50-block-PhOx50) block copolymer and the gradient poly(2-methyl-2-oxazoline)50-stat-poly(2-phenyl- 2-oxazoline)50 (pMeOx50-stat-PhOx50) are depicted in Figure 1 together with the calculated monomer distribution in the polymer chains (bottom).

Year:

2008

Type of Publication:

Article

Journal:

Macromolecules

Volume:

41

Pages:

1581 - 1583