Articles
  • Synthesis of a new polystyrene@Fe3O4 magnetic microspheres

  • Yongping Xuea,b, Feng Jiana, Xuewen Zhongb, Lu Tangb,* and Xiaojun Yangc,*

  • aSchool of chemical Engineering & Pharmacy, Wuhan Institute of Technology, Wuhan 430073, Hubei, China
    bThe College of Post and Telecommnication of Wuhan Institute of Technology, Wuhan 430073, Hubei, China
    cKey Laboratory of Green Chemical Process of Ministry of Education, Key Laboratory of Novel Reactor and Green Chemical Technology of Hubei Province,School of Chemical Engineering & Pharmacy, Wuhan Institute of Technology, Wuhan 430205, Hubei, China

  • This article is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In this article, the synthesis process of magnetic polystyrene@Fe3O4 was investigated, which are suitable for the application in magnetically stabilized fluidized-bed reactors. The magnetic polystyrene@Fe3O4 coated with Fe3O4 were prepared by suspension polymerization. In the reaction, triethoxy(vinyl)silane, styrene, divinylbenzene, liquid paraffin, gelatin, benzoyl peroxides (BPO) were used as the surfactant, monomers, the crosslinking agent, a porogenic agent, a dispersant, an initiator, respectively. Simultaneously, the chemical composition, morphologies, particle sizes, the amount of Fe3O4 coated were analyzed. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), infrared spectroscopy (FTIR), vibrating sample magnetometer (VSM) analysis and thermo gravimetric analysis (TGA). The results showed that the new type of magnetic polystyrene@Fe3O4 microspheres were porous, spherical in shape with a narrow particle size distribution in the range of 150~200 μm. The amount of Fe3O4 coating reached to 12.39%, and the maximum saturation magnetization was 51.71 A∙m2·kg-1 at room temperature. In addition, the results also showed that polystyrene@Fe3O4 magnetic microspheres have good acid resistance and good suspendability


Keywords: suspension polymerization, microspheres, Fe3O4, surface modification, coating

This Article

  • 2021; 22(4): 441-445

    Published on Aug 31, 2021

  • 10.36410/jcpr.2021.22.4.441
  • Received on Jan 6, 2021
  • Revised on Mar 5, 2021
  • Accepted on Apr 19, 2021

Correspondence to

  • Lu Tang b,and Xiaojun Yang c

  • bThe College of Post and Telecommnication of Wuhan Institute of Technology, Wuhan 430073, Hubei, China
    cKey Laboratory of Green Chemical Process of Ministry of Education, Key Laboratory of Novel Reactor and Green Chemical Technology of Hubei Province,School of Chemical Engineering & Pharmacy, Wuhan Institute of Technology, Wuhan 430205, Hubei, China
    Tel : +86-027-87194980 Fax: +86-027-87194980

  • E-mail: souproad@163.com (L. Tang), 10100201@wit.edu.cn (X