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Micellization of Poly(2‐oxazoline)‐Based Quasi‐Diblock Copolymers on Surfaces
Authors:Charles‐André Fustin  Nathalie Lefèvre  Richard Hoogenboom  Ulrich S. Schubert  Jean‐François Gohy
Affiliation:1. Unité de Chimie des Matériaux Inorganiques et Organiques (CMAT), and Research Center in Micro‐ and Nanoscopic Materials and Electronic Devices (CeRMiN), Université catholique de Louvain, Place L. Pasteur 1, 1348 Louvain‐la‐Neuve, Belgium;2. Laboratory of Macromolecular Chemistry and Nanoscience, Eindhoven University of Technology and Dutch Polymer Institute (DPI), Den Dolech 2, Eindhoven 5600 MB, The Netherlands;3. Laboratory of Organic and Macromolecular Chemistry, Friedrich‐Schiller‐Universit?t Jena, Humboldtstrasse 10, 07743 Jena, Germany;4. Unité de Chimie des Matériaux Inorganiques et Organiques (CMAT), and Research Center in Micro‐ and Nanoscopic Materials and Electronic Devices (CeRMiN), Université catholique de Louvain, Place L. Pasteur 1, 1348 Louvain‐la‐Neuve, BelgiumUnité de Chimie des Matériaux Inorganiques et Organiques (CMAT), and Research Center in Micro‐ and Nanoscopic Materials and Electronic Devices (CeRMiN), Université catholique de Louvain, Place L. Pasteur 1, 1348 Louvain‐la‐Neuve, Belgium
Abstract:The micellization on surfaces of two series of quasi‐diblock copoly(2‐oxazoline)s consisting of 2‐phenyl‐2‐oxazoline (PhOx) segments linked to either 2‐methyl‐2‐oxazoline (MeOx) or 2‐ethyl‐2‐oxazoline (EtOx) segments is investigated in detail. Those micelles are not pre‐existing in the initial ethanol solution but are formed during the spin‐coating process by the evaporation of the solvent inducing the precipitation of the less soluble PhOx segments. The morphology and size of the surface micelles vary according to the fraction of PhOx in the copolymers. Moreover, it is demonstrated that the chemical nature of the more soluble MeOx or EtOx segments also has an influence on the morphology of the resulting surface micelles.
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Keywords:micelles  morphology  spin‐coating  surfaces
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