Factorial design to obtain magnetized poly(ethyl acrylate-co-divinylbenzene)

Abstract

Magnetized polymers are produced by incorporating magnetic particles in a polymeric matrix. This article describes the use of the suspension polymerization technique using ethyl acrylate and divinylbenzene as monomers, in the presence of heptane and/or toluene as diluent, initiated by free radicals. To produce the polymer, we first performed fractional factorial planning to help visualize the factors that could influence the results, to verify the action of different responses simultaneously. Five factors were evaluated that influence the production of the polymer and incorporation of iron in the matrix. Infrared spectroscopy, X-ray fluorescence, magnetic force testing and scanning electron microscopy were used to characterize the samples. The results indicated the positive influence of the quantity of the polymerization initiator on the yield of the process and the negative effect of the content of divinylbenzene on the incorporation of iron in the matrix and on the magnetic force.

Comprehensive Review of Magnetic Polymeric Nanocomposites with Superparamagnetic Iron Oxide Nanoparticles for Oil Removal from Water

“…Several other ex situ strategies and methods are described in the literature: (I) coupling of polymer chains to nanoparticles; (II) simultaneous combination of polymeric chains and nanoparticles; (III) formation of ex situ nanoparticles followed by polymerization of the organic component [48,[62][63][64], and (IV) ex situ formation of polymeric nanoparticles followed by precipitation or crystallization, among other methods [30].…”