Imperial College London
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Dr Christopher S. Roberts

Faculty of Natural Sciences, Department of Chemistry

Technical Specialist for the Centre for Rapid Online Analysi
 
 
 
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Contact

 

christopher.roberts10

 
 
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Location

 

401JMolecular Sciences Research HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Clancy:2017:10.1039/C7NR00734E,
author = {Clancy, AJ and anthony, D and Fisher, S and Leese, H and Roberts, C and Shaffer, M},
doi = {10.1039/C7NR00734E},
journal = {Nanoscale},
pages = {8764--8773},
title = {Reductive dissolution of supergrowth carbon nanotubes for tougher nanocomposites by reactive coagulation spinning},
url = {http://dx.doi.org/10.1039/C7NR00734E},
volume = {9},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Long single-walled carbon nanotubes, with lengths >10 μm, can be spontaneously dissolved by stirring in a sodium naphthalide N,N-dimethylacetamide solution, yielding solutions of individualised nanotubide ions at concentrations up to 0.74 mg mL−1. This process was directly compared to ultrasonication and found to be less damaging while maintaining greater intrinsic length, with increased individualisation, yield, and concentration. Nanotubide solutions were spun into fibres using a new reactive coagulation process, which covalently grafts a poly(vinyl chloride) matrix to the nanotubes directly at the point of fibre formation. The grafting process insulated the nanotubes electrically, significantly enhancing the dielectric constant to 340% of the bulk polymer. For comparison, samples were prepared using both Supergrowth nanotubes and conventional shorter commercial single-walled carbon nanotubes. The resulting nanocomposites showed similar, high loadings (ca. 20 wt%), but the fibres formed with Supergrowth nanotubes showed significantly greater failure strain (up to ∼25%), and hence more than double the toughness (30.8 MJ m−3), compared to composites containing typical ∼1 μm SWCNTs.
AU  - Clancy,AJ
AU  - anthony,D
AU  - Fisher,S
AU  - Leese,H
AU  - Roberts,C
AU  - Shaffer,M
DO  - 10.1039/C7NR00734E
EP  - 8773
PY  - 2017///
SN  - 2040-3372
SP  - 8764
TI  - Reductive dissolution of supergrowth carbon nanotubes for tougher nanocomposites by reactive coagulation spinning
T2  - Nanoscale
UR  - http://dx.doi.org/10.1039/C7NR00734E
UR  - http://hdl.handle.net/10044/1/65681
VL  - 9
ER  -
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