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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-23 14:34 |
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Conference: Bucharest University Faculty of Physics 2008 Meeting
Section: Solid State Physics and Materials Science
Title:
Magnetic microstructure of magnetite doped elastomers investigated by SANS and SAXS
Authors:
M. Balasoiu[1/2], M.L. Craus[1/3], V. Haramus[4], J. Plestil[5], A.I. Kuklin[1], R. Erhan[1/2], E.M. Anitas[1], A. Schreyer[4], V. Tripadus[2], D. Savu[6], S. Savu[4], I. Bica[6]
Affiliation:
[1] Joint Institute of Nuclear Research, Dubna, Russia;
[2] National Institute of Physics and Nuclear Engineering, Bucharest, Romania;
[3] National Institute of Research and Development for Technical Physics, Iasi, Romania;
[4] GKSS Forschungszentrum, Geesthacht, Germany;
[5] Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Prague;
[6] West University of Timisoara, Department of Electricity and Magnetism, Timisoara, Romania;
E-mail
balasoiumaria@yahoo.com
Keywords:
magnetite, doped elastomers, small-angle neutron scattering
Abstract:
The combination of polymers with magnetic materials displays novel properties compared to the traditional materials. They open new possibilities for technological applications. Combination of magnetic and elastic properties leads to different phenomena which are exhibited in different magnetic fields [1, 2].
Such composites are quite new and understanding of the behavior of these materials depending on the composition, external conditions, and the synthesis processes is intensively under investigation [3].
The present work analyses the results of SANS and SAXS investigations of magnetite doped elastomers polymerized in magnetic field and without.
The magnetic elastomers sample were prepared at the West University of Timisoara, Department of Electricity and Magnetism by embedding in the polymer matrix of a magnetite magnetic liquid produced at the Magnetic Fluid Laboratory of the Romanian Academy Section of Timisoara [4].
The SAXS measurements were performed at the Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Prague. The SANS experiments were realized at GKSS Forschungszentrum, Geesthacht, Germany.
The SANS and SAXS experiments performed on investigated materials allowed us to obtain information concerning the presence of aggregates and their changing due to the magnetite doping. The presence of magnetic field during the preparation process influences the ordering of the aggregates.
[1] Yu.L.Raikher, O.V.Stolbov, Letter to JTF, .26, Issue 4 (2000) 47 (Rus.)
[2] S. Abramchuk , E. Kramarenko , G. Stepanov , L. V. Nikitin , G. Filipcsei , A. R. Khokhlov , M. Zrínyi , Polymers for Advanced Technologies 18, Issue 11 (2007) 883
[3] E.M.Anitas, A.Kh.Islamov, M.Balasoiu, C.Muresan, I.Bica, Yu.S.Kovalev, O.L.Orelovich, A.I.Kuklin, Journal of Optoelectronics and Advanced Materials (2008) (to be published).
[4] Vekas L., Bica D., Avdeev M.V., China Particuology, 5 (2007) 43
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