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Authors Spange, St. ; Müller, H. ; Jäger, C. ; Bellmann, C.
Title Fabrication of Carbon/Silica Hybrid Materials Using Cationic Polymerization and the Sol-Gel Process
Date 09.04.2002
Number 10409
Abstract 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.
Publisher Macromolecular Symposia
Wikidata
Citation Macromolecular Symposia 177 (2002) 111 - 124
DOI https://doi.org/10.1002/1521-3900(200201)177:1<111::AID-MASY111>3.0.CO;2-N
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