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Preparation of Double-Responsive SiO2-g-PDMAEMA Nanoparticles via ATRP
作者:Xiaofeng Sui, Jinying Yuan*, Weizhong Yuan, Mi Zhou
關(guān)鍵字:Atom transfer radical polymerization; pH-responsive; Temperature-responsive; Nanocomposites; Polymers
論文來(lái)源:期刊
具體來(lái)源:Materials Letters, 2008, 62: 1372-1375
發(fā)表時(shí)間:2008年

Organic/inorganic hybrid materials have both the advantages of organic polymers and inorganic materials, and now have become a new hotspot in material science. We choose Poly((2-Dimethylamino)ethyl methacrylate) (PDMAEMA), which was grafted from the surface of silica nanoparticles via atom transfer radical polymerization (ATRP) to form pH and temperature stimuli-responsive hybrid nanoparticles. Thermogravimetric analysis (TGA) was used to estimate the content of linked organic compound, and transmission electron micrographs (TEM) was used to observe the shell–core structure of hybrid nanoparticles. Double stimuli-response was characterized with ZetaPALS ZetaPotential Analyzer. The results showed that the hybrid nanoparticles were successfully synthesized and had the expected double stimuli-response.

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