Preparation of magnetic latexes using styrene monomer

被引：14

作者：

Betancourt-Galindo, R

Saldívar-Guerrero, R

Rodríguez-Fernández, OS

García-Cerda, LA

Matutes-Aquino, J

机构：

[1] Ctr Invest Quim Aplicada, Saltillo 25000, Coahuila, Mexico

[2] Ctr Invest Mat Avanzados, Chihuahua, Chih, Mexico

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2004年 / 369卷 / 1-2期

关键词：

magnetic latexes; polymers; magnetic materials; miniemulsion polymerization; magnetic measurements;

D O I：

10.1016/j.jallcom.2003.09.077

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 preparation of magnetic latexes using styrene monomer was carried out via the miniemulsion polymerization technique. Magnetite (Fe3O4), with an average size of 12 nm was used as magnetic particles. An organic phase was prepared dispersing the magnetite in styrene where bis(2-ethyl, hexyl) sulphosuccinate (AOT) was used as dispersant. The dispersion was then miniemulsified in water using cethyltrimethyl ammonium bromide (CTAB) as second emulsifier forming a stable emulsion. The miniemulsion polymerization was carried out at 60 degreesC and was initiated with 2.2-Azobisisobutyronitrile (AIBN). The latexes obtained were characterized by X-ray diffraction (XRD), magnetometry and transmission electron microscopy. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：87 / 89

页数：3

共 12 条

[1] Synthesis of ultra-fine particles of strontium hexaferrite by a modified co-precipitation method [J].