Synthesis of SiO2-coated Bi2S3/poly(styrene) nanocomposites by in-situ polymerization.
New nanocomposites containing silica-coated Bi2S3 nanofibers were synthesised by in situ polymerization using two distinct synthetic strategies: emulsion and suspension polymerization. Transmission and scanning electron microscopy of the nanocomposite particles showed that in both cases the Bi2S3/SiO2 nanoparticles were densely coated with poly(styrene). In situ emulsion polymerization afforded nanocomposites in which the nanofibers were coated with polymer spheres whilst suspension polymerization gives rise to a homogeneous polymer layer coat. The morphology of the poly(styrene) coating observed is discussed considering the surface modification of the nanofibers and the polymerization technique involved.
Departamento de Química, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
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Esteves
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MC
Neves
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A
Barros-Timmons
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E
Bourgeat-Lami
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Liz-Marzán
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Trindade
D001729:Bismuth / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D036103:Nanotechnology; D011108:Polymers / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*; D013440:Sulfides / Q000138:chemical synthesis* / Q000737:chemistry
D011108:Polymers; D013440:Sulfides; D012822:Silicon Dioxide; D001729:Bismuth; C049897:bismuth sulfide