Amino-Functionalized Nanoparticles via Copolymerization with 2-Aminoethyl methacrylate in Miniemulsion

• Published in: Macromolecular symposia Vol. 275; no. 1; pp. 133 - 141
• Main Authors: Grabs, Ilka-Marina, Schmidt-Naake, Gudrun
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Weinheim Wiley-VCH Verlag 01.01.2009; WILEY-VCH Verlag; WILEY‐VCH Verlag; Wiley-VCH
• Subjects: amino-functionalized; Applied sciences; conductometric titration; Copolymerization; Exact sciences and technology; Methacrylamide; miniemulsion; Monomers; Nanoparticles; Organic polymers; Physicochemistry of polymers; Preparation, kinetics, thermodynamics, mechanism and catalysts; radical copolymerization; Styrenes; Surface area; Titration; Stoichiometry; Particle size; Emulsion copolymerization; Amino group; Nanoparticle; Experimental study; Butyl acrylate copolymer; Polyelectrolyte; Structure processing relationship; Functionality; Morphology; Preparation; Methacrylate copolymer; Radical copolymerization; Amine copolymer; Butyl methacrylate copolymer; Styrene copolymer
• ISSN: 1022-1360; 1521-3900
• DOI: 10.1002/masy.200950115

The copolymerization of 2-aminoethyl methacrylate hydrochloride (AEMA) with styrene (St), butyl acrylate (BuA) or butyl methacrylate (BuMA) in miniemulsion leads to amino-functionalized nanoparticles. The influences of different pH values and different monomer/water ratios onto the incorporation of AEMA into the particles were studied. In order to prevent the rearrangement of AEMA into the 2-hydroxy-ethyl methacrylamide (HEMAA), a pH value below 4 has to be used. AEMA and HEMAA were studied regarding the copolymerization behavior. The monomer/water ratio has an influence on the stability of the resulting latices. The surface area of the according amino-particles was analysed with conductometric titration.