Micellar behavior of well‐defined polystyrene‐based block copolymers with triethoxysilyl reactive groups and their hydrolysis–condensation |
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| Authors: | Cé Guinto Gamys Emmanuel Beyou Elodie Bourgeat‐Lami |
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| Institution: | 1. Université de Lyon, Lyon, F‐69003, France;2. Université Lyon 1, Lyon, F‐69622, Villeurbanne, France;3. CNRS UMR5223, Ingénierie des Matériaux Polymères, Laboratoire des Matériaux Polymères et Biomatériaux, 15 Boulevard Latarget, F‐69622 Villeurbanne, France;4. Université de Lyon, Université Lyon 1, CPE Lyon, CNRS, UMR 5265, Laboratoire de Chimie, Catalyse, Polymères et Procédés (C2P2), LCPP Group, 43, Bd. du 11 Novembre 1918, F‐69616 Villeurbanne, France |
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| Abstract: | Block copolymers of acryloxy propyl triethoxysilane and styrene were prepared through nitroxide‐mediated polymerization using alkoxyamine initiators based on N‐tert‐butyl‐1‐diethylphosphono‐2,2‐dimethylpropyl nitroxide. The copolymers were characterized by 1H NMR, size exclusion chromatography and differential scanning calorimetry. Their micellar behavior in dioxane/methanol solutions was examined through static light scattering and transmission electron microscopy (TEM). TEM indicated the successful formation of spherical micelles which were subsequently frozen by the sol–gel process. Hydrolysis–condensation of the reactive ethoxysilyl side groups was followed by FTIR, 1H NMR, and 29Si NMR. © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 784–793, 2010 |
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| Keywords: | block copolymers gelation nitroxide‐mediated polymerization self‐assembly |
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