Facile Approach for Superparamagnetic CNT-Fe3O4/Polystyrene Tricomponent Nanocomposite via Synergetic Dispersion
Facile Approach for Superparamagnetic CNT-Fe3O4/Polystyrene Tricomponent Nanocomposite via Synergetic Dispersion
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DOI：
10.1021/ie300891h
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发表时间：
2012-09
影响因子：
4.2
通讯作者：
W. Zhong;Peng Liu;Zhaobin Tang;Xueli Wu;Jianhui Qiu
中科院分区：
文献类型：
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作者：
W. Zhong;Peng Liu;Zhaobin Tang;Xueli Wu;Jianhui Qiu
以油酸（OA）为表面改性剂，采用一锅法原位自由基本体聚合技术，通过协同分散法制备了多壁碳纳米管（CNT）固载Fe 3 O 4纳米粒子（CNT-Fe 3 O 4）/聚苯乙烯（PS）三组分纳米复合材料。与单独添加Fe 3 O 4纳米粒子和多壁碳纳米管制备的三组分纳米复合材料相比，Fe 3 O 4纳米粒子固定在多壁碳纳米管上可以有效地避免Fe 3 O 4纳米粒子在聚合物基体中的团聚。OA分子吸附在固定在多壁碳纳米管上的Fe 3 O 4纳米颗粒表面，有效地提高了多壁碳纳米管在苯乙烯中的分散性，从而得到了分散性良好的CNT-Fe 3 O 4/PS三组分纳米复合材料。
A facile one-pot in-situ radical bulk polymerization strategy was developed for preparation of the superparamagnetic multiwalled carbon nanotubes-Fe3O4/polystyrene (CNT-Fe3O4/PS) tricomponent nanocomposite by the synergetic dispersion strategy via the multiwalled carbon nanotubes (CNT) immobilized Fe3O4 nanoparticles (CNT-Fe3O4) with oleic acid (OA) as surface modifier. Compared with the tricomponent nanocomposite prepared with the multiwalled carbon nanotubes and Fe3O4 nanoparticles added separately, immobilization of Fe3O4 nanoparticles on multiwalled carbon nanotubes could avoid efficiently aggregation of the Fe3O4 nanoparticles in polymer matrices. OA molecules adsorb onto the surfaces of the Fe3O4 nanoparticles immobilized on the multiwalled carbon nanotubes, improving efficiently the dispersibility of the multiwalled carbon nanotubes in styrene, which resulted in the well-dispersed CNT-Fe3O4/PS tricomponent nanocomposite.