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Facile Synthesis Polyethylene Glycol Coated Magnetite Nanoparticles for High Colloidal Stability

Polyethylene glycol (PEG) is one of the most frequently used synthetic polymers for surface modifications of magnetite nanoparticles (MNPs) to provide a new opportunity for constructing high colloidal stability. Herein, a facile in situ coprecipitation technique is described for the synthesis of PEG...

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Main Authors: Tai, M.F., Lai, Chin Wei, Hamid, Sharifah Bee Abd
Format: Article
Language:English
Published: Hindawi Publishing Corporation 2016
Subjects:
Q Science (General)
Online Access:http://eprints.um.edu.my/17482/1/TaiMF_%282016%29.pdf
http://eprints.um.edu.my/17482/
http://dx.doi.org/10.1155/2016/8612505
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spelling my.um.eprints.174822018-10-19T04:03:47Z http://eprints.um.edu.my/17482/ Facile Synthesis Polyethylene Glycol Coated Magnetite Nanoparticles for High Colloidal Stability Tai, M.F. Lai, Chin Wei Hamid, Sharifah Bee Abd Q Science (General) Polyethylene glycol (PEG) is one of the most frequently used synthetic polymers for surface modifications of magnetite nanoparticles (MNPs) to provide a new opportunity for constructing high colloidal stability. Herein, a facile in situ coprecipitation technique is described for the synthesis of PEG coated MNPs using ammonium hydroxide as the precipitating agent. The structure and morphology of the prepared PEG coated MNPs samples were characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray spectroscopy, thermogravimetric analysis (TGA), and the high resolution transmission electron microscopy (HRTEM). In this study, all samples demonstrated hydrodynamic size in the range of 32 to 43 nm with narrow size distribution. In addition, the magnetic properties of resultant samples were investigated using a vibrating sample magnetometer (VSM) to reveal the superparamagnetic behaviour with saturation magnetization. The saturation magnetization of PEG coated MNPs samples was in the range of 63 to 66 emu/g at 300 K. Interestingly, it was found that 1.0 g of PEG coated MNPs exhibited high colloidal stability in a basic solution (pH = 10) and nitrile (NBR) latex up to 21 days as compared to the unmodified MNPs during the sedimentation test. Hindawi Publishing Corporation 2016 Article PeerReviewed application/pdf en http://eprints.um.edu.my/17482/1/TaiMF_%282016%29.pdf Tai, M.F. and Lai, Chin Wei and Hamid, Sharifah Bee Abd (2016) Facile Synthesis Polyethylene Glycol Coated Magnetite Nanoparticles for High Colloidal Stability. Journal of Nanomaterials (JNM), 2016. pp. 1-7. ISSN 1687-4110 http://dx.doi.org/10.1155/2016/8612505 doi:10.1155/2016/8612505
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
language English
topic Q Science (General)
spellingShingle Q Science (General)
Tai, M.F.
Lai, Chin Wei
Hamid, Sharifah Bee Abd
Facile Synthesis Polyethylene Glycol Coated Magnetite Nanoparticles for High Colloidal Stability
description Polyethylene glycol (PEG) is one of the most frequently used synthetic polymers for surface modifications of magnetite nanoparticles (MNPs) to provide a new opportunity for constructing high colloidal stability. Herein, a facile in situ coprecipitation technique is described for the synthesis of PEG coated MNPs using ammonium hydroxide as the precipitating agent. The structure and morphology of the prepared PEG coated MNPs samples were characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray spectroscopy, thermogravimetric analysis (TGA), and the high resolution transmission electron microscopy (HRTEM). In this study, all samples demonstrated hydrodynamic size in the range of 32 to 43 nm with narrow size distribution. In addition, the magnetic properties of resultant samples were investigated using a vibrating sample magnetometer (VSM) to reveal the superparamagnetic behaviour with saturation magnetization. The saturation magnetization of PEG coated MNPs samples was in the range of 63 to 66 emu/g at 300 K. Interestingly, it was found that 1.0 g of PEG coated MNPs exhibited high colloidal stability in a basic solution (pH = 10) and nitrile (NBR) latex up to 21 days as compared to the unmodified MNPs during the sedimentation test.
format Article
author Tai, M.F.
Lai, Chin Wei
Hamid, Sharifah Bee Abd
author_facet Tai, M.F.
Lai, Chin Wei
Hamid, Sharifah Bee Abd
author_sort Tai, M.F.
title Facile Synthesis Polyethylene Glycol Coated Magnetite Nanoparticles for High Colloidal Stability
title_short Facile Synthesis Polyethylene Glycol Coated Magnetite Nanoparticles for High Colloidal Stability
title_full Facile Synthesis Polyethylene Glycol Coated Magnetite Nanoparticles for High Colloidal Stability
title_fullStr Facile Synthesis Polyethylene Glycol Coated Magnetite Nanoparticles for High Colloidal Stability
title_full_unstemmed Facile Synthesis Polyethylene Glycol Coated Magnetite Nanoparticles for High Colloidal Stability
title_sort facile synthesis polyethylene glycol coated magnetite nanoparticles for high colloidal stability
publisher Hindawi Publishing Corporation
publishDate 2016
url http://eprints.um.edu.my/17482/1/TaiMF_%282016%29.pdf
http://eprints.um.edu.my/17482/
http://dx.doi.org/10.1155/2016/8612505
_version_ 1643690430009704448
score 13.251813

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