Premium
Preparation of magnetically doped multilayered functional silica particles via surface modification with organic polymer
Author(s) -
Rahman M. A.,
Miah M. A. J.,
Minami H.,
Ahmad H.
Publication year - 2013
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.3067
Subject(s) - materials science , surface modification , adsorption , x ray photoelectron spectroscopy , chemical engineering , biomolecule , polymer , fourier transform infrared spectroscopy , scanning electron microscope , polymerization , methacrylic acid , composite number , covalent bond , polymer chemistry , nanotechnology , organic chemistry , composite material , chemistry , engineering
Magnetically modified functional particles are emerging as one of the most promising candidate in numerous multidisciplinary applications. In this research, a simple process has been developed to prepare magnetically modified aminated silica (SiO 2 ) particles. Herein, submicron‐sized SiO 2 particles were modified with poly(methylmethacrylate‐methacrylic acid) by seeded polymerization without any stabilizer. The carboxyl groups localized near the particles surface were then covalently linked with ethylene diamine to prepare aminated composite particles. Iron ions were then precipitated on the surface of aminated composite particles to obtain magnetically doped functional SiO 2 particles. The preparation of such particles was confirmed by scanning electron microscopy, Fourier transform infrared, 1 H NMR, X‐ray photoelectron spectroscopy and thermogravemetric analyses. Relative measurement of adsorption study of different biomolecules suggested that magnetically doped functional silica particles are comparatively hydrophobic. Copyright © 2012 John Wiley & Sons, Ltd.