Aerosol Process for the In Situ Coating of Nanoparticles with a Polymer Shell
Aerosol Process for the In Situ Coating of Nanoparticles with a Polymer Shell
复制标题
用聚合物壳原位涂覆纳米颗粒的气溶胶工艺
DOI:
10.1080/02786826.2014.964354
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发表时间:
2014
影响因子:
5.2
通讯作者:
A. P. Weber
中科院分区:
文献类型:
--
作者:
J. Poostforooshan;S. Rennecke;M. Gensch;S. Beuermann;G.-P. Brunotte;G. Ziegmann;A. P. Weber
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 NH3as aerosol initiator. Ag and SiO2nanoparticles 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 the results show that monomer and polymer coating efficiency are 99% and 60%, respectively.Copyright 2014 American Association for Aerosol Research
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