Abstract ▼ AI-Helper

In this study the results for the preparation of water-soluble nano-sized metal oxide using ω-functionalized poly(ethylene oxide)(PEO) as a polymeric surfactant by the sol-gel process is reported. n-Butyllithium-initiated anionic ring-opening polymerization of ethylene oxide with t-BuOK has been suc...

In this study the results for the preparation of water-soluble nano-sized metal oxide using ω-functionalized poly(ethylene oxide)(PEO) as a polymeric surfactant by the sol-gel process is reported. n-Butyllithium-initiated anionic ring-opening polymerization of ethylene oxide with t-BuOK has been successfully performed in the mixture of dimethyl sulfoxide and benzene with a living manner.
Not only the molecular weight of the resulting lithium polymeric alkoxide was readily controlled but also a quantitative chain-end functionalization was achieved. ω-Anhydride PEO reacted with folic acid, doxorubicin and used as a stabilizing agent for metal oxide nanoparticles.
The resulting products were characterized by the combination of 1H-NMR spectroscopic, UV/Visible spectroscopic, Transmission electron microscopic (TEM), and X-ray diffraction (XRD) pattern analysis.
Both the ratio of the concentration of metal precursor to functionalized PEO and the reaction temperature are expected to be the major factors to control the particle size of metal oxide. The size was controlled in the range of 1~100 nm by controlling the metal ion concentration and reaction temperature.

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