Colloidal dispersion of magnetite nanoparticles via in situ preparation with sodium polyoxyalkylene di-phosphonates

被引:30
作者
Dumazet-Bonnamour, I [1 ]
Le Perchec, P [1 ]
机构
[1] Lab Mat Organ Proprietes Specif, F-69390 Vernaison, France
关键词
dispersion; particles; nanoscale; magnetite; polymer;
D O I
10.1016/S0927-7757(99)00495-1
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
Hydrosoluble polymers attached to inorganic surfaces allow production of dispersed state particles. Functionalized end-chain polymers were used to prepare stable aqueous magnetite colloidal dispersions. The magnetite nanoparticles were synthesized from coprecipitation of aqueous Fe3+ and Fe2+ ions in the presence of sodium polyoxyalkylene di-phosphonates. Transmission electron microscopy (TEM), dynamic light scattering (DLS), pyroanalysis techniques and isotherm determinations are reported to characterize the nanosized particles. Because of the structure of the interface with the polymer tightly anchored to the surface and the biocompatibility of the polyoxyalkylene chain, new developments might be found in the forthcoming time. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:61 / 71
页数:11
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