Incorporation of magnetic nanoparticles into lamellar polystyrene-b-poly(n-butyl methacrylate) diblock copolymer films: Influence of the chain end-groups on nanostructuration |
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Authors: | Siham Douadi-Masrouki,Bruno Frka-Petesic,Maud Save,Bernadette Charleux,Valé rie Cabuil,Olivier Sandre |
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Affiliation: | a UPMC Univ Paris 6, UMR 7195 Physicochimie des Electrolytes, Colloïdes et Sciences Analytiques, 4 place Jussieu, case 51 75005 Paris France b Centre National de la Recherche Scientifique, UMR 7195 PECSA, 75005 Paris France c ESPCI ParisTech, UMR 7195 PECSA, 75005 Paris France d UPMC Univ Paris 6, UMR 7610 Laboratoire de Chimie des Polymères, 4 place Jussieu, case 185 75005 Paris France e Centre National de la Recherche Scientifique, UMR 7610 LCP, 75005 Paris France |
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Abstract: | In this article, we present new samples of lamellar magnetic nanocomposites based on the self-assembly of a polystyrene-b-poly(n-butyl methacrylate) diblock copolymer synthesized by atom transfer radical polymerization. The polymer films were loaded with magnetic iron oxide nanoparticles covered with polystyrene chains grown by surface initiated-ATRP. The nanostructuration of the pure and magnetically loaded copolymer films on silicon was studied by atomic force microscopy, ellipsometry, neutron reflectivity and contact angle measurement. The present study highlights the strong influence of the copolymer extremity - driven itself by the choice of the ATRP chemical route - on the order of the repetition sequences of the blocks in the multi-lamellar films. In addition, a narrower distribution of the nanoparticles’ sizes was examined as a control parameter of the SI-ATRP reaction. |
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Keywords: | Polymer synthesis Polymer physical chemistry Polymer composite materials |
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