Synthesis of Crosslinked Microparticles Based on Glycidyl Methacrylate and N‐Vinylimidazole

Abstract

In this study, suspension polymerization technique is used to obtain three‐dimensional porous networks based on two monofunctional monomers (glycidyl methacrylate and N‐vinylimidazole) and one of the following difunctional monomers known as crosslinking agents: mono‐, di‐ and triethylene glycol dimethacrylate or divinylbenzene. The influence of various operational parameters like: monomer molar ratio, amount and type of crosslinkers, composition of stabilization system, stirring speed, amount of porogenic agent on the reaction yield, surface morphologies, particle size distribution and porous characteristics are investigated in order to find the optimal conditions for the synthesis of microparticles possessing the desired properties for further chemical modification. Crosslinked porous microparticles are structurally characterized by FTIR spectroscopy, X‐ray photoelectron spectroscopy and elemental analysis by determination of nitrogen and epoxy groups. The microparticle morphologies as a function of investigated parameters are revealed by scanning electron microscopy whereas the porous structure is highlighted by mercury porosimetry and dynamic water vapor sorption methods. All the crosslinked networks exhibit porous structures with different surface morphologies and specific surface area values (1.15 – 48.32 m2 g−1) depending on the operational parameters. These microparticles can be considered precursors for the preparation of various functional polymeric materials.This article is protected by copyright. All rights reserved

Thermal Characterization of Crosslinked Polymeric Microspheres Bearing Thiol Groups Studied by TG/FTIR/DSC under Non-Oxidative Conditions

“…Among these vinyl monomers, glycidyl methacrylate (GMA) stands out due to its dual functionality from both methacrylate and oxirane groups. Its chemical structure enables flexibility in designing the polymer structure [ 1 , 2 , 3 , 4 , 5 , 6 ]. The methacrylate group contains a reactive C=C bond that allows it to polymerize readily with a wide range of functional and crosslinked monomers.…”

“…The methacrylate group contains a reactive C=C bond that allows it to polymerize readily with a wide range of functional and crosslinked monomers. Such monomers include aliphatic methacrylates, like ethylene glycol dimethacrylate, trimethylolpropane trimethacrylate (TRIM), or aromatic monomers, like the widely used divinylbenzene (DVB) [ 6 , 7 , 8 , 9 , 10 , 11 ]. On the other hand, the oxirane group introduced to the polymer structure by GMA can react with strong and weak nucleophiles, e.g., amines [ 12 , 13 , 14 , 15 ], which are reagents that allow the introduction of carboxyl groups [ 16 , 17 ], pyrrolidone [ 18 , 19 ] and many others.…”

Fast Gold Recovery from Aqueous Solutions and Assessment of Antimicrobial Activities of Novel Gold Composite

“…Chelating groups may be covalently bound to a polymer as pendant groups or incorporated into the repeating units of the polymer backbone by the polymerization of a suitable monomer containing the required chelating group. The presence of porous channels, their large surface area, and their unique chemical characteristics have led to the numerous potential applications of these porous materials [11][12][13][14][15][16][17]. Among them, the chelating polymer ligands based on glycidyl methacrylate (GMA) are very attractive, due to the presence of oxirane rings that can easily be transformed into various functional groups [18].…”