Electrospinning preparation and characterization of size controllable polyaniline composite micospheres

Liang Wang, Chunmei Ding, Ying Zhu, Meixiang Wan, Lei Jiang

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Polyaniline (PANI) microspheres containing Fe3O4 nanoparticles are prepared by means of electrospinning technology using a blending chloroform solution of dodecylbenzene sulfonic acid (DBSA) doped polyaniline (PANI) with polyethylene glycol (PEG) and Fe3O 4 nanoparticles. SEM images indicate that composite microspheres of PANI/PEG/Fe3O4 are prepared by means of electrospinning technology, and the diameters are in the range of 2 ∼ 5 μm, which are significantly influenced by the concentration of PEG polymer, the applied voltage and the mass ratio of Fe3O4 in the polymers. With increasing the concentration of PEG, cohesive microspheres turn into regular ones, meanwhile the diameters increase. In comparison, the increasing applied voltage results in gradually reduced diameters of the microspheres. In addition, the microspheres are hardly affected by the addition of various amounts of Fe3 O4 nanoparticles It is found that the addition of Fe3O4 nanoparticles does not affect the polymeric chain structure of PANI. However, the added Fe3 O4 nanoparticles contribute superparamagnetic properties to the composite microspheres, especially the saturated magnetization (Ms) increases with the increase of the adding content of Fe3O4 nanoparticles. Furthermore, the conductive ratio of the electrospinning conduct is about 1 × 10-6 S/cm.

Original languageEnglish
Pages (from-to)752-757
Number of pages6
JournalActa Polymerica Sinica
Issue number7
Publication statusPublished - 20 Jul 2011
Externally publishedYes


  • Conducting polyaniline
  • Electrospinning technology
  • Microsphere structures
  • Sizes controlled
  • Supper-magnetic properties

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