Abstract
The micelle formation of five poly(2-oxazoline) diblock, triblock and gradient copolymers in water was investigated using fluorescence correlation spectroscopy. The polymers were synthesized by consecutive or simultaneous living cationic polymerization of 2-methyl2-oxazoline for the hydrophilic and 2-nonyl-2-oxazoline for the hydrophobic polymer segments. Fractions of the polymers were fluorescence-labeled at the polymer termini with TRITC for the FCS measurements. The hydrodynamic radii of solubilized polymer unimers and of the aggregates (micelles) were determined in a concentration range of 10 -8-10-3 M and were found to depend in a characteristic way on the polymer architecture.
| Original language | English |
|---|---|
| Pages (from-to) | 1402-1408 |
| Number of pages | 7 |
| Journal | Macromolecular Chemistry and Physics |
| Volume | 208 |
| Issue number | 13 |
| DOIs | |
| State | Published - 3 Jul 2007 |
Keywords
- Amphiphilic copolymers
- Fluorescence correlation spectroscopy
- Polymer physics