Study of a new colloidal composite: polymer-magnetite particles/lyotropic liquid crystal
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MĂNĂILĂ MAXIMEAN, D., DĂNILĂ, O., ŞTEFĂNESCU, Beatrice, BENA, R., ROŞU, C., DONESCU, D., EUGENIU, V.. Study of a new colloidal composite: polymer-magnetite particles/lyotropic liquid crystal. In: Nanotechnologies and Biomedical Engineering, Ed. 3, 23-26 septembrie 2015, Chișinău. Springer, 2015, Editia 3, p. 58.
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Nanotechnologies and Biomedical Engineering
Editia 3, 2015
Conferința "International Conference on Nanotechnologies and Biomedical Engineering"
3, Chișinău, Moldova, 23-26 septembrie 2015

Study of a new colloidal composite: polymer-magnetite particles/lyotropic liquid crystal


Pag. 58-58

Mănăilă Maximean D.1, Dănilă O.1, Ştefănescu Beatrice1, Bena R.1, Roşu C.1, Donescu D.2, Eugeniu V.3
 
1 University Politehnica of Bucharest,
2 National Institute of Research and Development for Chemistry and Petrochemistry – ICECHIM,
3 METAV-CD, Bucharest
 
Disponibil în IBN: 8 aprilie 2019


Rezumat

Liquid crystals/magnetic particles composites have been shown to exhibit very interesting behaviors when subjected to different external fields, finding new applications in the field of functional nanomaterials. We present a new colloidal composite formed by combining polymer-magnetite nanoparticles and a lyotropic nematic liquid crystals. TEM investigations on the polystyrene magnetite show magnetite nanocrystals anchored in polymeric chains. The optical transmission of the ferronematic was investigated when the samples were subjected to different values of static magnetic field and the critical magnetic field corresponding to the Freedericksz transition was estimated.