Authors
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Spange, St. ; Müller, H. ; Jäger, C. ; Bellmann, C.
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Title
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Fabrication of Carbon/Silica Hybrid Materials Using Cationic Polymerization and the Sol-Gel Process
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Date
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09.04.2002
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Number
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10409
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Abstract
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Silica particles with different morphology have been functionalized with carbon shells by different synthetic procedures. In the key step, the bare silica particles are functionalized by a specific cationic surface polymerization with furfuryl alcohol (FA). The polyfurfuryl alcohol (PFA)/silica hybrid particles have been also post-functionalized with maleic anhydride (MSA) by a Diels Alder reaction. Simultaneously occuring cationic polymerization of FA and sol-gel process with TEOS has been used for producing interpenetrating carbon-silica hybrid materials. The thermal transformation of the PFA component on silica into the carbon phase has been carried out under argon atmosphere in a temperature range from 700°C to 900°C. The influence of the former morphology of the silica on the homogenity of the resulting carbon layer is shown by zetapotential measurements and electron microscopic investigations.
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Publisher
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Macromolecular Symposia
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Wikidata
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Citation
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Macromolecular Symposia 177 (2002) 111 - 124
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DOI
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https://doi.org/10.1002/1521-3900(200201)177:1<111::AID-MASY111>3.0.CO;2-N
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