Encapsulation of TiO2 by emulsion polymerization with methyl metacrylate (MMA) |
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| Authors: | Adriano Marim de Oliveira Maria Lúcia Caetano Pinto da Silva Gizelda Maria Alves Pedro Carlos de Oliveira Amilton Martins dos Santos |
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| Affiliation: | (1) Department of Chemical Engineering, Faculty of Chemical Engineering of Lorena, FAENQUIL, P.O. Box 116, Lorena, SP, Brazil |
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| Abstract: | Summary This paper presents a methodology of encapsulation of TiO2 (Titanium dioxide) by emulsion polymerization on the proposal to modify the physical-chemical properties of the pigment surface.
In the proposed methodology the TiO2 was previously modified by isopropoxy-titanium-tri-isostearate, before being encapsulated by emulsion polymerization using
Methyl Methacrylate as monomer.
The effects of the polymerization process, type of initiator and monomer concentration in the efficiency of encapsulation
were studied. The encapsulated pigment was characterized by Thermogravimetric Analysis (TGA), Light Scattering (LS) and Transmission
Electron Microscopy (TEM). |
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| Keywords: | Titanium dioxide methyl methacrylate encapsulation emulsion polymerization |
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