Attempts have been made to encapsulate silica within poly(lactic acid) (PLA), prepared by nanoprecipitation and emulsification—diffusion methods, in order to modify their surface properties. We have shown that silica—PLA colloidal nanocomposites can be readily obtained through nanoprecipitation and emulsion—diffusion. The nanoprecipitation method coats a thin-nanolayer on the surface of the silica particles, as per transmission electron micrographs analysis. In the case of emulsion—diffusion method, the free PLA nanospheres were embedded around the silica particles. Both methods proved to be successful in coating or encapsulation of the inorganic surface through polymer precipitation.
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2.
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3.
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4.
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5.
Bourgeat-Lami, E. and Lang, J. (1999). Encapsulation of Inorganic Particles by Dispersion Polymerization in Polar Media: 1. Silica Nanoparticles Encapsulated by Polystyrene, Journal of Colloid Interface Science, 197: 293-308.
6.
Bourgeat-Lami, E. and Lang, J. (1999). Encapsulation of Inorganic Particles by Dispersion Polymerization in Polar Media: 2. Effect of Silica Size and Concentration on the Morphology of Silica-Polystyrene Composite Particles , Journal of Colloid Interface Science, 210: 281-289.
7.
Luna-Xavier, J.-L., Guyot, A. and Bourgeat-Lami , E. (2002 ). Synthesis and Characterization of Silica/Poly (Methyl Methacrylate) Nanocomposite Latex Particles through Emulsion Polymerization Using a Cationic Azo Initiator , Journal of Colloid Interface Science, 250(1): 82-92.
8.
Wang, Y., Dave, R.N. and Rfeffer, R. ( 2004). Polymer Coating/encapsulation of Nanoparticles Using a Supercritical Anti-solvent Process, The Journal of Supercritical Fluids, 28: 85-91.
9.
Qi, D.-M. , Bao, Y.-Z., Weng, Z.-X. and Huang, Z.-M. (2006). Preparation of Acrylate Polymer/ silica Nanocomposite Particles with High Silica Encapsulation Efficiency via Miniemulsion Polymerization, Polymer, 47(13): 4622-4629.
10.
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11.
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