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A green method of preparation of porous melamine formaldehyde resin without template in aqueous solution

Colloid and Polymer Science, ISSN: 1435-1536, Vol: 303, Issue: 1, Page: 111-118
2025
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Article Description

Porous melamine formaldehyde resin (PMF) was synthesized without using template in aqueous solution with a green preparation method. Conditions such as formaldehyde/melamine, concentration, curing temperature, and time on pore parameters of synthesized porous melamine formaldehyde resin were investigated. The chemical property and pore structure of porous melamine formaldehyde resin were characterized by infrared spectroscopy, SEM, and BET. The results showed that the samples synthesized in solvent water had a surface higher than 490 m/g, pore diameter of about 12.0 nm, and pore volume of about 1.2 cm/g. The surface area and pore structure of porous melamine formaldehyde resin could be adjusted by changing the prepolymer concentration. Due to the large pore diameter and volume, it also adsorbed a great amount of Congo Red (CR), indicating an excellent adsorbent for large molecules. This investigation reveals that the -NH and pore structure have great effects on the adsorption capacity of Congo Red dye of the as-synthesized melamine formaldehyde resin samples.

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