Synthesis of nanoscaled poly(styrene-co-n-butyl acrylate)/silica particles with dumbbell- and snowman-like morphologies by emulsion polymerization
BLADÉ, Tatiana
Centre de recherches Paul Pascal [CRPP]
Laboratoire de Chimie, Catalyse, Polymères et Procédés, R 5265 [C2P2]
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Centre de recherches Paul Pascal [CRPP]
Laboratoire de Chimie, Catalyse, Polymères et Procédés, R 5265 [C2P2]
BLADÉ, Tatiana
Centre de recherches Paul Pascal [CRPP]
Laboratoire de Chimie, Catalyse, Polymères et Procédés, R 5265 [C2P2]
< Leer menos
Centre de recherches Paul Pascal [CRPP]
Laboratoire de Chimie, Catalyse, Polymères et Procédés, R 5265 [C2P2]
Idioma
en
Article de revue
Este ítem está publicado en
Polymer Chemistry. 2014, vol. 5, n° 19, p. pp. 5609-5616
Royal Society of Chemistry - RSC
Resumen en inglés
Poly(styrene-co-n-butyl acrylate) (P(Sty-co-BuA)) nanoparticles having diameters in the range of 25-60nm have been successfully synthesized via emulsion polymerization. Sodium styrene sulfonate (SSNa) was used as an ionic ...Leer más >
Poly(styrene-co-n-butyl acrylate) (P(Sty-co-BuA)) nanoparticles having diameters in the range of 25-60nm have been successfully synthesized via emulsion polymerization. Sodium styrene sulfonate (SSNa) was used as an ionic comonomer, sodium dodecyl sulfate as a surfactant and divinyl benzene (DVB) as a crosslinking agent. The average polymer particle diameter increased with decreasing the SSNa content in the feed, while increasing DVB concentrations increased the size polydispersity. Dumbbell- and snowman-like P(Sty-co-BuA)/silica biphasic nanoparticles with silica and polymer nodules smaller than typically 60 nm in diameter were obtained by introducing appropriate amounts of 3-(methacryloxy) propyl trimethoxysilane-functionalized silica nanoparticles as seeds in the emulsion polymerization reaction. Neither the quantity of the surfactant nor that of the coupling agent had a strong influence on the obtained morphologies. The control of the number of polymer nodules attached to the silica seed through the modulation of the quantity of silica was also limited, likely because of the low available surface area on each seed in the targeted size range. Consequently, silica-polymer biphasic particles with on average one, two or three polymer nodules at the most were obtained depending on the experimental conditions.< Leer menos
Palabras clave en inglés
Synthesis of nanoscale
silica particles
emulsion polymerization
Orígen
Importado de HalCentros de investigación