Polysiloxane Surfactants for the Dispersion of Carbon Nanotubes in Nonpolar Organic Solvents
نویسندگان
چکیده
منابع مشابه
The role of surfactants in dispersion of carbon nanotubes.
The discovery of carbon nanotubes offers exciting opportunities for the development of novel high property materials. Disaggregation and uniform dispersion are critical challenges that must be met to successfully produce such high property materials, since carbon nanotubes tend to self-associate into micro-scale aggregates. This results in products with inferior mechanical and electric performa...
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The processing of carbon nanotubes (CNTs) remains a significant barrier in the exploitation of their unique properties. CNT dispersions have been achieved by noncovalent modification using surfactants and polymers with aromatic functionalities that assemble onto nanotube surfaces via p–p interactions. Synthetic aromatic ligands, such as pyrene and its derivatives, have also been used as low-cos...
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Gold nanoparticles up to 70 nm in diameter could be extracted from aqueous solutions into nonpolar organic solvents by tetrathiolated resorcinarenes 1 and 2. The resorcinarene-coated nanoparticles formed stable dispersions in toluene and chloroform and could be passed through a crosslinked polystyrene column without significant degradation, but exhibited variable resistance to alkanethiol-induc...
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HYPOTHESIS Sodium dioctylsulfosuccinate (Aerosol OT or NaAOT) is a well-studied charging agent for model poly(methyl methacrylate) (PMMA) latexes dispersed in nonpolar alkane solvents. Despite this, few controlled variations have been made to the molecular structure. A series of counterion-exchanged analogs of NaAOT with other alkali metals (lithium, potassium, rubidium, and cesium) were prepar...
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boron nitride semiconducting zigzag swcnt, $b_{cb}$$n_{cn}$$c_{1-cb-cn}$, as a potential candidate for making nanoelectronic devices was examined. in contrast to the previous dft calculations, wherein just one boron and nitrogen doping configuration have been considered, here for the average over all possible configurations, density of states (dos) was calculated in terms of boron and nitrogen ...
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ژورنال
عنوان ژورنال: Langmuir
سال: 2009
ISSN: 0743-7463,1520-5827
DOI: 10.1021/la901622c