Aqueous micelles formed by ABC, ACB, ABCA and ABCB copoly(2-oxazoline)s

POLY 285

Jean-François Gohy, gohy@chim.ucl.ac.be1, Charles-André Fustin, fustin@chim.ucl.ac.be1, Haiying Huang1, Alain Jonas, jonas@poly.ucl.ac.be2, Richard Hoogenboom, r.hoogenboom@tue.nl3, Mark A. M. Leenen3, Frank Wiesbrock3, and Ulrich S. Schubert3. (1) Unité de Chimie des Matériaux Inorganiques et Organiques (CMAT), Université catholique de Louvain, Place Louis Pasteur, 1, B-1348 Louvain-la-Neuve, Belgium, (2) Dept. of Materials Science and Processing, Université Catholique de Louvain, Place Croix du Sud, 1, Louvain-la-Neuve, 1348, Belgium, (3) Laboratory of Macromolecular Chemistry and Nanoscience, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, Netherlands
Microwave-assisted cationic ring-opening polymerization has been successfully used to sequentially synthesize ABC, ACB, ABCA and ABCB block copolymers where A stands for 2-methyl-2-oxazoline (MeOx), B for 2-ethyl-2-oxazoline (EtOx) and C for 2-phenyl-2-oxazoline (PhOx). For each of these block copolymers, the degree of polymerization of the constituent blocks has been kept constant. The micellization of these block copolymers has been studied in water. Micellization has been triggered by adding water to a solution of the copolymers in a non-selective solvent. Spherical micelles were formed and studied by Atomic Force Microscopy and Dynamic Light Scattering.
 

Multicompartment Micelles: Higher Order Self-assembly of Block Copolymers
1:30 PM-5:00 PM, Monday, 11 September 2006 San Francisco Marriott -- Salon B2, Oral

Division of Polymer Chemistry

The 232nd ACS National Meeting, San Francisco, CA, September 10-14, 2006