0343957 - ÚMCH 2011 RIV GB eng J - Journal Article
Horák, Daniel - Trchová, Miroslava - Beneš, Milan J. - Veverka, Miroslav - Pollert, Emil
Monodisperse magnetic composite poly(glycidyl methacrylate)/La0.75Sr0.25MnO3 microspheres by the dispersion polymerization.
Polymer. Roč. 51, č. 14 (2010), s. 3116-3112. ISSN 0032-3861. E-ISSN 1873-2291
R&D Projects: GA AV ČR KAN200200651; GA ČR GA203/09/0857; GA MŠMT 2B06053
Institutional research plan: CEZ:AV0Z40500505; CEZ:AV0Z10100521
Keywords : magnetic * dispersion polymerization * glycidyl methacrylate
Subject RIV: CD - Macromolecular Chemistry
Impact factor: 3.829, year: 2010

Monodisperse magnetic poly(glycidyl methacrylate) microspheres were prepared by dispersion polymerization of glycidyl methacrylate in cyclohexane in the presence of La0.75Sr0.25MnO3 nanoparticles, surface of which was modified with penta(propylene glycol) methacrylate phosphate (PPGMAP). However, only agglomerates were formed by the dispersion polymerization in toluene. Sterical stabilizer was poly(styrene-block-hydrogenated butadiene-block-styrene) and initiators investigated were 2,2′-azobisisobutyronitrile (AIBN) and 4,4′-azobis(4-cyanovaleric acid) (ACVA). Effects of initiators and other reaction conditions on properties of the composite microspheres were evaluated. The phase composition of the magnetic polymer composite microspheres and the size of magnetic cores were determined by X-ray powder diffraction. The characterization was completed by magnetization measurements, atomic absorption spectroscopy, TEM, SEM and ATR FTIR spectroscopy.
Permanent Link: http://hdl.handle.net/11104/0005930