Neutron reflectivity on polymer multilayers doped with magnetic nanoparticles

被引：2

作者：

Douadi-Masrouki, S. ^{[1
]}

Frka-Petesic, B. ^{[1
]}

Sandre, O. ^{[1
]}

Cousin, F. ^{[2
]}

Dupuis, V. ^{[1
]}

Perzynski, R. ^{[1
]}

Cabuil, V. ^{[1
]}

机构：

[1] UPMC, Univ Paris 06, Lab Liquides Ion & Interfaces Chargees, CNRS,ESPCI,UMR 7612, 4 Pl Jussieu,Case 51, F-75252 Paris 05, France

[2] CEA Saclay, CNRS, CEA, Lab Leon Brillouin,UMR 12, F-91191 Gif Sur Yvette, France

来源：

MAGNETISM AND MAGNETIC MATERIALS | 2009年 / 152-153卷

关键词：

magnetic nanoparticles; dibloc copolymer; ATRP; grafting from; neutron reflectivity; DIBLOCK COPOLYMER FILMS; POLYSTYRENE;

D O I：

10.4028/www.scientific.net/SSP.152-153.194

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The aim of this work is to elaborate nanocomposite thin films sensitive to a magnetic field by incorporating magnetic nanoparticles in a symmetrical diblock copolymer matrix organized in lamellae on plane substrates. On the one hand, the symmetrical diblock copolymer P(n-BMA)-b-PS is synthesized by ATRP and characterized by several methods. On the other hand, nanoparticles made of maghemite gamma-Fe2O3 are functionalized with PS using the "grafting from" technique in order to make them compatible with polystyrene and to insert them in PS lamellae. Composite films are elaborated by "spin coating" a Solution containing both the gamma-Fe2O3@PS core-shell nanoparticles and the copolymer onto a silicon substrate. After annealing, these films are characterized mainly by AFM and neutron reflectivity to investigate the lamellar order.

引用

页码：194 / +

页数：2

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