Aerosol Process for theIn SituCoating of Nanoparticles with a Polymer Shell
| Autor: | Jalal Poostforooshan, Gabriella-Paula Brunotte, Sabine Beuermann, Gerhard Ziegmann, Alfred P. Weber, Manuel Gensch, S. Rennecke |
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| Rok vydání: | 2014 |
| Předmět: |
Glycidyl methacrylate
Materials science Nanocomposite Nanoparticle engineering.material Pollution chemistry.chemical_compound Monomer chemistry Polymerization Chemical engineering Coating Scanning mobility particle sizer Polymer chemistry engineering Environmental Chemistry General Materials Science Particle size |
| Zdroj: | Aerosol Science and Technology. 48:1111-1122 |
| ISSN: | 1521-7388 0278-6826 |
| DOI: | 10.1080/02786826.2014.964354 |
| Popis: | This article presents a novel method to encapsulate gas-borne nanoparticles with a polymeric shell. This method implies heterogeneous condensation of monomer vapor around the surface of nanoparticles as nuclei and polymerization is then subsequently started by addition of NH3 as aerosol initiator. Ag and SiO2 nanoparticles were generated as inorganic core by spark discharge and nebulization, respectively, and glycidyl methacrylate (GMA) was used as organic monomer. The effect of several parameters, including vapor pressure of monomer and properties of inorganic core such as morphology, material, particle size, and production method on the thickness of polymeric shell and morphology of resulting nanocomposites has been investigated. The particle size distribution and morphology of the resulting core-shell nanoparticles have been studied via scanning mobility particle sizer (SMPS) and transmission electron microscope (TEM). Finally, the coating efficiency was determined by aerosol photoemission (APE) and th... |
| Databáze: | OpenAIRE |
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