ФТТ, 2010, том 52, выпуск 5

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Microstructure of stomaflex based magnetic elastomers

M.Balasoiu *,***, M.L.Craus **,***, E.M.Anitas ***,****,
I.Bica ****, J.Plestil *****, A.I.Kuklin ***

* National Institute of Physics and Nuclear Engineering,
Bucharest, Romania
** National Institute of Research and Development for Technical Physics,
Iasi, Romania
*** Joint Institute of Nuclear Research,
Dubna, Moscow region, Russia
**** West University of Timisoara, Department of Electricity and Magnetism,
Timisoara, Romania
***** Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic,
Prague, Czech Republic
E-mail: balasoiumaria@yahoo.com

Stomaflex elastomers filled with two types of magnetic particles (nano- and micro-sized) were investigated. It was observed that doping with Fe3O4 nanoparticales 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.

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