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Hybrid polymeric latexes containing magnetite |
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| Authors: | Dan Donescu Raluca Somoghi Catalin Ilie Spataru Doina Manaila-Maximean Denis Mihaela Panaitescu Eugeniu Vasile Cristina L Nistor |
| Institution: | 1. The National Institute for Research & Development in Chemistry and Petrochemistry, Splaiul Independentei 202, O.P. 35, CP 174, Bucharest, 060021, Romania 2. Department of Physics, University Politehnica of Bucharest, Splaiul Independentei 313, Bucharest, 060042, Romania 3. METAV-CD, C.A. Rosetti 31, 020011, Bucharest, Romania |
| Abstract: | The work describes a study for preparing polystyrene (PSt) and polymethyl methacrylate (PMMA) latex, containing magnetite (Fe3O4), covalently bounded to the polymeric chains. The magnetite was functionalized with various alkoxysilanes containing double bonds: vinyltriethoxysilane (VTES), methacryloyl propyl trimethoxysilane (MPTS) and vinyldimethylethoxysilane (VMe2TES). The ferrite-silane composite forms higher average size particles with MPTS than with VTES. Ferrite functionalized with VMe2TES forms stable latexes with both PSt and PMMA polymers. PSt forms also stable latexes with ferrite functionalized with VTES but unstable with ferrite functionalized with MPTS. |
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