Synthesis of Multipod-like Silica/Polymer Latex Particles via Nitroxide-Mediated Polymerization-Induced Self-Assembly of Amphiphilic Block Copolymers
| Autor: | Bernadette Charleux, Elodie Bourgeat-Lami, X. G. Qiao, Pierre-Yves Dugas, Muriel Lansalot |
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| Přispěvatelé: | Laboratoire de Chimie, Catalyse, Polymères et Procédés, R 5265 (C2P2), Centre National de la Recherche Scientifique (CNRS)-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC) |
| Rok vydání: | 2015 |
| Předmět: |
chemistry.chemical_classification
Nitroxide mediated radical polymerization Polymers and Plastics Ethylene oxide Organic Chemistry Emulsion polymerization Polymer Methacrylate Styrene Inorganic Chemistry chemistry.chemical_compound [CHIM.POLY]Chemical Sciences/Polymers chemistry Polymerization Polymer chemistry Materials Chemistry Copolymer ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Macromolecules Macromolecules, American Chemical Society, 2015, 48 (3), pp.545-556. ⟨10.1021/ma5019473⟩ |
| ISSN: | 1520-5835 0024-9297 |
| DOI: | 10.1021/ma5019473 |
| Popis: | We report the first nitroxide-mediated synthesis of multipod-like silica/polymer latexes by polymerization-induced self-assembly (PISA) of amphiphilic block copolymers in aqueous emulsion. A water-soluble brush-type PEO-based macroalkoxyamine initiator composed of poly(ethylene oxide) methacrylate and a small amount of styrene (P[(PEOMA950)12-co-S1]-SG1, Mn = 11 700 g mol–1 and Mw/Mn = 1.11) was synthesized and physically adsorbed on the surface of silica particles through hydrogen-bonding interactions. The adsorbed macroalkoxyamine initiator was subsequently employed to initiate the emulsion polymerization of n-butyl methacrylate with a small amount of styrene under mild conditions (85 °C). Kinetic analysis indicates that the polymerizations exhibit the same behavior (i.e., the same reaction rates and the same level of control) as those reported in our previous work in the absence of silica under otherwise similar experimental conditions [Qiao Macromolecules 2013, 46, 4285−4295]. This observation is full... |
| Databáze: | OpenAIRE |
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