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Sains Malaysiana 42(4)(2013):
487–493
Rapid
Synthesis of Magnetic Microspheres Poly(Glycidyl Methacrylate-co-Styrene) by Photopolymerization
(Kaedah Pantas untuk Sintesis Mikrosfera Poli(Glisidil Metakrilat-ko-Stirena) Bermagnet melalui Fotopempolimeran)
Sharina Abu Hanifah*, Normah Hamzah & Lee Yook Heng
School
of Chemical Sciences and Food Technology, Faculty of Science and Technology
43600
UKM Bangi, Selangor D.E. Malaysia
Sharina Abu Hanifah*
Polymer
Research Center, Faculty of Science and Technology
43600
UKM Bangi, Selangor D.E. Malaysia
Diserahkan: 18 Jun 2011 / Diterima:
28 Mei 2012
ABSTRACT
Three compositions of glycidyl methacrylate and styrene were added with Fe3O4,
ethylene glycol dimethacrylate (EGDMA),
poly vinyl alcohol (PVA) and 2,
2-dimethoxy-2-phenylacetophenone (DMPP). Fe3O4 were
dispersed within monomers and were exposed to the ultraviolet radiation for
polymerization process. The Fe3O4 particles
were introduced to enhance physical and chemical properties of the polymers.
The thermal properties of polymer were improved after addition of styrene and
Fe3O4. Vibrating sample
magnetometer (VSM) also exhibits copolymer with soft ferromagnetic
properties. Field emission scanning electron microscopy (FESEM)
showed the size of magnetic polymer microspheres were from 0.5 to 1.5 μm. The rough surface was also observed due to the
presence of styrene.
Keywords: Fe3O4; glycidyl methacrylate; photopolymerization;
styrene; thermal properties
ABSTRAK
Tiga komposisi glisidil metakrilat dan stirena ditambah dengan Fe3O4, etilena glikol dimetakrilat (EGDMA), poli vinil alkohol (PVA) dan 2,2-dimetoksi-2-fenilasetofenon (DMPP). Fe3O4 disebarkan di dalam monomer dan didedahkan kepada sinaran ultra lembayung untuk proses pempolimeran. Zarah Fe3O4 dimasukkan untuk meningkatkan sifat fizik dan kimia polimer. Sifat terma polimer meningkat selepas penambahan stirena dan Fe3O4. Magnetometer sampel bergetar (VSM) juga mempamerkan kopolimer bersifat ferromagnet lembut. Mikroskop elektron imbasan pancaran medan (FESEM) menunjukkan saiz mikrosfera polimer bermagnet ialah daripada 0.5 hingga 1.5 μm. Permukaan kasar juga diperhatikan kerana kehadiran stirena.
Kata kunci: Fe3O4; fotopempolimeran; glisidil metakrilat; sifat terma; stirena
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*Pengarang untuk surat-menyurat; email: sharina@ukm.my
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