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. 2017 Jul 15:498:335-342.
doi: 10.1016/j.jcis.2017.03.064. Epub 2017 Mar 16.

Synthesis of mesoporous poly(melamine-formaldehyde) particles by inverse emulsion polymerization

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Synthesis of mesoporous poly(melamine-formaldehyde) particles by inverse emulsion polymerization

Dana Schwarz et al. J Colloid Interface Sci. .

Abstract

Mesoporous poly(melamine-formaldehyde) (MF) particles with surface areas of up to 200m2g-1 were synthesized by an inverse emulsion polymerization using dodecane and Span80® as continuous phase. The finer details of the shape control (using emulsion techniques) and the porosity control (using silica nanoparticles as hard-template) are discussed. The impact of phase-separation processes on the observable porosity of the 20-200µm sized spherical particles is analysed by gas sorption methods and electron microscopy. The high density of amine and triazine functional groups in the porous MF particles make the material a promising adsorber for heavy metal ions and methylene blue. In a preliminary column experiment, the synthesized material exhibited a total capacity of 2.54mmol/g (≙ 812.4mg/g) for the adsorption of methylene blue.

Keywords: Adsorption; Dodecane/Span80; Emulsion polymerization; Melamine resin; Particles.

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