微悬浮法制备多孔聚苯乙烯磁性微球

徐鹏; 苏天翔; 曹小勇; 高勤卫; 张蕤

doi:10.3969/j.issn.1000-2006.2013.06.021

微悬浮法制备多孔聚苯乙烯磁性微球

徐鹏,苏天翔,曹小勇,高勤卫,张蕤

南京林业大学学报（自然科学版） ›› 2013, Vol. 37 ›› Issue (06) : 107-110.

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

研究论文

微悬浮法制备多孔聚苯乙烯磁性微球

徐鹏¹,苏天翔¹,曹小勇²,高勤卫¹,张蕤^1*

作者信息 +

Preparation of magnetic porous PS microspheres by microsuspension

XU Peng¹,SU Tianxiang¹,CAO Xiaoyong²,GAO Qinwei¹,ZHANG Rui^1*

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文章历史 +

摘要

将偶联剂乙烯基三乙氧基硅烷(SG-151)表面修饰后的Fe₃O₄磁性纳米粒子均匀分散在苯乙烯中,以过氧化苯甲酰(BPO)为引发剂,十二烷基硫酸钠(SDS)和聚吡咯烷酮(PVP)为稳定剂,二乙烯基苯(DVB)为交联剂,甲苯/庚烷为致孔剂,制备了多孔聚苯乙烯磁性微球。分别用扫描电子显微镜(SEM)、透射电子显微镜(TEM)、热重仪(TGA)等对多孔聚苯乙烯磁性微球的结构进行了表征。实验结果表明,所制备的多孔磁性微球粒径在4～10 μm之间,微球表面孔隙结构明显并具有较好的磁响应性。

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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徐鹏,苏天翔,曹小勇,高勤卫,张蕤. 微悬浮法制备多孔聚苯乙烯磁性微球[J]. 南京林业大学学报（自然科学版）. 2013, 37(06): 107-110 https://doi.org/10.3969/j.issn.1000-2006.2013.06.021

XU Peng,SU Tianxiang,CAO Xiaoyong,GAO Qinwei,ZHANG Rui. Preparation of magnetic porous PS microspheres by microsuspension[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY. 2013, 37(06): 107-110 https://doi.org/10.3969/j.issn.1000-2006.2013.06.021

中图分类号： TB383

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基金

收稿日期:2013-01-17 修回日期:2013-09-30
基金项目:南京林业大学人才基金项目(B2009-15); 江苏省高校自然科学基础研究项目(10KJB30009); 中国博士后科学基金面上项目(2011M500842); 江苏高校优势学科建设工程资助项目(PAPD)
第一作者:徐鹏,讲师,博士。*通信作者:张蕤,副教授,博士。E-mail: xupeng5993@126.com。
引文格式:徐鹏,苏天翔,曹小勇,等. 微悬浮法制备多孔聚苯乙烯磁性微球[J]. 南京林业大学学报:自然科学版,2013,37(6):107-110.