Preparation of micrometer-sized, monodisperse, magnetic polymer particles

✍ Scribed by M. Okubo; H. Minami; T. Komura

• Publisher: John Wiley and Sons
• Year: 2003
• Tongue: English
• Weight: 321 KB
• Volume: 88
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.11720

✦ Synopsis

Abstract

Micrometer‐sized, monodisperse, magnetic composite particles were prepared by heating micrometer‐sized, monodisperse, hollow polystyrene/polydivinylbenzene composite polymer particles at 200°C for 4 h (particles had been dipped in pentacarbonyliron) and then washed in 12 N HCl and water. The hollow polymer particles were produced by seeded polymerization by the dynamic swelling method that was proposed by authors. The magnetic composite particles contained Fe~3~O~4~, the content of which was 49% based on total weight, and were attracted easily in water by a 1650 G magnet. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 88: 428–433, 2003