Nitroxide-Mediated Polymerization-Induced Self-Assembly of Block Copolymers at the Surface of Silica Particles: Toward New Hybrid Morphologies
| Autor: | Muriel Lansalot, X. G. Qiao, Pierre-Yves Dugas, Elodie Bourgeat-Lami, B. Charleux, Jean-Christophe Taveau, Olivier Lambert |
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| Přispěvatelé: | Zhejiang University, 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), Chimie et Biologie des Membranes et des Nanoobjets (CBMN), Université de Bordeaux (UB)-École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux (ENITAB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), École Nationale d'Ingénieurs des Travaux Agricoles - Bordeaux (ENITAB)-Institut de Chimie du CNRS (INC)-Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Nitroxide mediated radical polymerization
Materials science Polymers and Plastics Ethylene oxide Colloidal silica Organic Chemistry Emulsion polymerization 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Methacrylate 01 natural sciences 0104 chemical sciences Styrene Inorganic Chemistry chemistry.chemical_compound [CHIM.POLY]Chemical Sciences/Polymers chemistry Polymerization Polymer chemistry Materials Chemistry Copolymer 0210 nano-technology ComputingMilieux_MISCELLANEOUS |
| Zdroj: | Macromolecules Macromolecules, American Chemical Society, 2017, 50 (10), pp.3796-3806. ⟨10.1021/acs.macromol.7b00033⟩ |
| ISSN: | 0024-9297 1520-5835 |
| Popis: | Silica/polymer latexes with concentric core–shell–corona, half-capped, snowman-like vesicular, tadpole- and centipede-like morphologies have been produced by nitroxide-mediated polymerization-induced self-assembly (PISA) performed in the presence of aqueous suspensions of colloidal silica. A hydrosoluble brush-like PEO-based macroalkoxyamine (P[(poly(ethylene oxide) methyl ether methacrylate)12-co-styrene]-SG1, Mn = 11 700 g mol–1 and Mw/Mn = 1.11) was first adsorbed onto the surface of submicronic silica particles. The obtained suspension was then used in the emulsion polymerization of n-butyl methacrylate with 8 mol % of styrene. This led to the formation of amphiphilic block copolymers (BCPs) that self-assembled in situ at the silica surface into well-defined hybrid nano-objects of various morphologies, in agreement with the principles of polymerization-induced micellization. The influence of the pH was more specifically investigated, using silica particles of different size ranging from 30 to 230 nm. ... |
| Databáze: | OpenAIRE |
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