Microstructure of stomaflex based magnetic elastomers

0343305 - ÚMCH 2011 RIV RU eng J - Journal Article
Balasoiu, M. - Craus, M. L. - Anitas, E. M. - Bica, I. - Pleštil, Josef - Kuklin, A. I.
Microstructure of stomaflex based magnetic elastomers.
Physics of the Solid State. Roč. 52, č. 5 (2010), s. 917-921. ISSN 1063-7834. E-ISSN 1090-6460
Institutional research plan: CEZ:AV0Z40500505
Keywords : magnetorheological suspensions * sans * composites * particles * saxs * oil
Subject RIV: CD - Macromolecular Chemistry
Impact factor: 0.727, year: 2010

Stomaflex elastomers filled with two types of magnetic particles (nano- and micro-sized) were investigated. It was observed that doping with Fe3O4 nanoparticles and applying a magnetic field during the polymerisation process led to a significant change in the local structure of the elastomer. Decreases in the quasi-crystalline phase concentration, in the average size of the crystalline blocks, and in the ordering distance were observed after doping the elastomer with magnetite nanoparticles. After filling the polymer with Fe3O4 nanoparticles, yet the elastomer fractal dimension changes. For the elastomer filled with a large amount of Fe microparticles (75% particle concentration) a texture effect is observed, and this effect is larger for the samples polymerised in a magnetic field. At all microparticle concentrations, these elastomers exhibit surface fractal structure.
Permanent Link: http://hdl.handle.net/11104/0005906