Preparation of magnetic porous PS microspheres by microsuspension

XU Peng,SU Tianxiang,CAO Xiaoyong,GAO Qinwei,ZHANG Rui

Journal of Nanjing Forestry University (Natural Sciences Edition） ›› 2013, Vol. 37 ›› Issue (06) : 107-110.

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南京林业大学学报（自然科学版）
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Journal of Nanjing Forestry University (Natural Sciences Edition） ›› 2013, Vol. 37 ›› Issue (06) : 107-110. DOI: 10.3969/j.issn.1000-2006.2013.06.021

Preparation of magnetic porous PS microspheres by microsuspension

  • XU Peng1,SU Tianxiang1,CAO Xiaoyong2,GAO Qinwei1,ZHANG Rui1*
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Abstract

Dispersed Fe3O4 nanoparticles were modified by vinyl triethoxy silane(SG-151), to prepare Fe3O4/polystyrene porous crosslinked composite particles by microsuspension polymerization. In the reaction system, the magnetic porous PS microspheres were prepared by using benzoyl peroxide(BPO)as an initiator, divinyl benzene(DVB)as crosslinking agent, sodium dodecyl sulfate(SDS)and polyvinyl pyrrolidone(PVP)as stabilizers, toluene and heptane as pore-forming agents. The morphology and composition of the obtained porous microspheres were characterized with scanning electron microscope(SEM), transmission electron microscopy(TEM), and thermo gravimetric analysis(TGA). It was found that the Fe3O4/PS porous microspheres have regular spherical structures with a size distribution from 4 μm to 10 μm, the porous composted spheres also showed good magnetic response in magnetic field.

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XU Peng,SU Tianxiang,CAO Xiaoyong,GAO Qinwei,ZHANG Rui. Preparation of magnetic porous PS microspheres by microsuspension[J]. Journal of Nanjing Forestry University (Natural Sciences Edition）. 2013, 37(06): 107-110 https://doi.org/10.3969/j.issn.1000-2006.2013.06.021

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