By a News Reporter-Staff News Editor at Science Letter -- Current study results on Styrenes have been published. According to news reporting out of Anhui, People's Republic of China, by NewsRx editors, research stated, "In this report, we studied the formation mechanism of cagelike polymer microspheres fabricated conveniently and efficiently through a swelling-osmosis process of sulfonated polystyrene (SPS) microspheres in a ternary mixed solvent (water/ethanol/heptane). The scanning electron microscopy and transmission electron microscopy observations indicated that the morphology of the final cagelike SPS microspheres is mainly controlled by the composition of the mixed solvent and the swelling temperature."
Our news journalists obtained a quote from the research from the China University of Science and Technology, "Considering the solubility parameters of related reagents and the low interface tension of heptane and the aqueous solution of ethanol (only 6.9 mN/m), we confirm that the porogen procedure starts from the swelling of SPS microspheres by heptane, followed by the osmosis process of water molecules into the swollen SPS microspheres forced by the strong hydrophilicity of -SO3H group. The water molecules permeated into SPS microspheres will aggregate into water pools, which form the pores after the microspheres are dried. These prepared cagelike SPS microspheres are further served as the scaffold for the in situ generated CdS nanoparticles under gamma-ray radiation. The CdS/SPS composite microspheres show good fluorescence performance."
According to the news editors, the research concluded: "This work shows that the cagelike SPS microspheres have a wide industrial application prospect due to their economical and efficient preparation and loading nanoparticles."
For more information on this research see: Formation of Cage like Sulfonated Polystyrene Microspheres via Swelling-Osmosis Process and Loading of CdS Nanoparticles. Langmuir, 2013;29(49):15367-15374. Langmuir can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; Langmuir - www.pubs.acs.org/journal/langd5)
Our news journalists report that additional information may be obtained by contacting H.Q. Weng, China University of Science & Technology, Dept. of Polymer Sci & Engn, CAS Key Lab Soft Matter Chem, Hefei 230026, Anhui, People's Republic of China. Additional authors for this research include X.F. Huang, M.Z. Wang, X. Ji and X.W. Ge (see also Styrenes).
Keywords for this news article include: Asia, Anhui, Nanoparticle, Polystyrenes, Nanotechnology, Benzene Derivatives, Benzylidene Compounds, Emerging Technologies, People's Republic of China
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