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Clustering in water based magnetic nanofluids: investigations by light scattering methods
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AIP Conference Proceedings of the 8th International Conference on the Scientific and Clinical Applications of Magnetic Carriers, Vol. 1311, pp. 89-95
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Nanosized magnetite particles, with mean physical diameter of about 7 nm, obtained by chemical coprecipitation procedure were dispersed in water carrier by applying sterical stabilization of particles in order to prevent their aggregation and to ensure colloidal stability of the systems. Different chain length (C12, C14, C18) carboxylic acids (lauric (LA), myristic (MA) and oleic (OA)) were used for double layer coating of magnetite nanoparticles. Structural and magnetic properties were investigated by electron microscopy (TEM), dynamical and static light scattering (DLS, SLS) and magnetometry (VSM) to evaluate the role of chain length and of the saturated/unsaturated nature of surfactant layers. Also investigated were two water based magnetic nanocomposites obtained by encapsulating the magnetic nanoparticles in polymers with different functional properties.
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| 978-0-7354-0866-1 |
| ISSN: 0094-243X (print) |
| doi: 10.1063/1.3530065 |
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2010
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| nanostructured materials, colloids, transmission electron microscopy, light scattering |
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SOCOLIUC Vlad
,
TACULESCU Alina
,
COCA-PODARU (PODARU) Camelia
,
DOBRA Andreea
,
DAIA Camelia
,
MARINICA (BALAU) Oana
,
TURCU Rodica
,
VEKAS Ladislau
,
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International Conference Proceedings
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http://dx.doi.org/10.1063/1.3530065
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Magnetometry Laboratory
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| Institution: |
UPT
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