Rapid Carbon Nanotubes Suspension in Organic Solvents Using Organosilicon Polymers
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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.
Pulsed UV Laser Processing of Carbosilane and Silazane Polymers.
Ligon S, Blugan G, Kuebler J Materials (Basel). 2019; 12(3).
PMID: 30682883 PMC: 6384679. DOI: 10.3390/ma12030372.