Jump to main content
Jump to site search

Issue 6, 2011
Previous Article Next Article

Well controlled core/shell type polymeric microspheres coated with conducting polyaniline: fabrication and electrorheology

Author affiliations

Abstract

We report the fabrication and electrorheology of encapsulated core/shell structured microspherical particles with crosslinked poly(methyl methacrylate) (PMMA) as a core and conducting polyaniline (PANI) as a shell. Monodisperse PMMA particles were synthesized by dispersion polymerization initially, and then PANI was coated on the surface modified PMMA core via a chemical oxidation method for the application of electrorheological (ER) materials under an applied electric field strength. For the surface modification, the pristine PMMA microspheres were treated with ethylene glycol dimethacrylate, glycidyl methacrylate and oxydianiline in sequence as a crosslinking, swelling and grafting agent, respectively. Through this way the well controlled core/shell structure with a thick PANI layer was achieved. ER performance of these obtained microspheres dispersed in a silicone oil was investigated, in which their yield stress was analyzed based on the universal equation as a function of applied electric strength. Interesting shear stress curves observed under various electric field strengths were also found to be fitted well with the Cho–Choi–Jhon model of the rheological equation of state.

Graphical abstract: Well controlled core/shell type polymeric microspheres coated with conducting polyaniline: fabrication and electrorheology

Back to tab navigation

Supplementary files

Publication details

The article was received on 19 Jun 2011, accepted on 20 Jul 2011 and first published on 01 Sep 2011


Article type: Paper
DOI: 10.1039/C1RA00325A
RSC Adv., 2011,1, 1026-1032

  •   Request permissions

    Well controlled core/shell type polymeric microspheres coated with conducting polyaniline: fabrication and electrorheology

    F. F. Fang, Y. D. Liu, I. S. Lee and H. J. Choi, RSC Adv., 2011, 1, 1026
    DOI: 10.1039/C1RA00325A

Search articles by author

Spotlight

Advertisements