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Rapid carbon nanotubes suspension in organic solvents using organosilicon polymers

By Federico Dalcanale, Jonas Grossenbacher, Gurdial Blugan, Maurizio R Gullo, Jürgen Brugger, Hendrik Tevaearai, Thomas Graule and Jakob Kuebler


A strategy for a simple dispersion of commercial multi-walled carbon nanotubes (MWCNTs) using two organosilicones, polycarbosilane SMP10 and polysilazane Ceraset PSZ20, in organic solvents such as cyclohexane, tetrahydrofuran (THF), m-xylene and chloroform is presented. In just a few minutes the combined action of sonication and the presence of Pt(0) catalyst is sufficient to obtain a homogeneous suspension, thanks to the rapid hydrosilylation reaction between SiH groups of the polymer and the CNT sidewall. The as-produced suspensions have a particle size distribution <1μm and remain unchanged after several months. A maximum of 0.47 and 0.50mg/ml was achieved, respectively, for Ceraset in THF and SMP10 in chloroform. Possible applications as polymeric and ceramic thin films or aerogels are presented

Topics: 610 Medicine & health
Publisher: Elsevier
Year: 2016
DOI identifier: 10.1016/j.jcis.2016.02.050
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