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8th Liquid Matter Conference September 6-10, 2011 Wien, Austria ...

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P3.18Fri 911:<strong>10</strong>-14:00Study of new polymer-magnetite particles/liquid crystalcolloidal compositeDoina Manaila Maximean, 1 Constantin Rosu, 1 Emil Petrescu, 1 Dan Donescu, 2Eugeniu Vasile, 3 Cristina Cirtoaje, 1 and Octavian Danila 11 University Politehnica Bucuresti, Physics Department, 313, Splaiul Independentei,060042, Bucharest, Romania2 ICECHIM, Bucharest, Romania3 METAV-CD, Bucharest, RomaniaNew polystyrene and polymethyl methacrylate latexes containing magnetite with covalent bonds tothe polymeric chains have been obtained and characterized. By dispersing the magnetite-polymerparticles in a lyotropic liquid crystal based on sodium dodecyl sulfate, decanol and water, a newcolloidal system was obtained. The mixture was filled in ITO covered sandwich glass cells withhomeotropic alignement. The optical transmission in laser light under variable magnetic field isdiscussed. Acknowledgement. We acknowledge the financial support from CNCSIS -UEFISCSU,project number ID 123/2008.18

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