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.
Esteves
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AC
Departamento de Química, CICECO, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
Neves
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MC
Barros-Timmons
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A
Bourgeat-Lami
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E
Liz-Marzán
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L
Trindade
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T
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