Synthesis of mesoporous poly(melamine-formaldehyde) particles by inverse emulsion polymerization.
Mesoporous poly(melamine-formaldehyde) (MF) particles with surface areas of up to 200m2g-1were 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.
Charles University in Prague, Faculty of Science, Department of Organic Chemistry, Hlavova 2030/8, 12843 Prague 2, Czech Republic; Hochschule Zittau/Görlitz (University of Applied Science), Fachgruppe Chemie, Theodor-Körner-Allee 16, 02763 Zittau, Germany. Electronic address: schwarzda@natur.cuni.cz.
Dana
D
Schwarz
Hochschule Zittau/Görlitz (University of Applied Science), Fachgruppe Chemie, Theodor-Körner-Allee 16, 02763 Zittau, Germany. Electronic address: j.weber@hszg.de.
Jens
J
Weber
Adsorption; Dodecane/Span80; Emulsion polymerization; Melamine resin; Particles