Debundling of single-walled nanotubes by dilution: Observation of large populations of individual nanotubes in amide solvent dispersions
Article Abstract:
Atomic force microscopy (AFM), ultraviolet (UV)-vis-near infrared (NIR) absorption, NIR photoluminescence and Raman spectroscopy are used to demonstrate that single-walled nanotubes can be debundled simply by reducing the nanotube concentration in N-methyl-2-pyrrolidone (NMP) dispersions. The findings reveal that the average bundle diameter decreases with decreasing concentration of 8 x [10.sup.-3] mg/mL.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2006
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Binding kinetics and SWNT bundle dissociation in low concentration polymer-nanotube dispersions
Article Abstract:
A new spectroscopic method is described in this work, to measure the ratio of free polymer to nanotube-bound polymer in SWNT/polymer solutions. This ratio is highly nonlinear and can be described by a model based on polymer-nanotube adsorption/desorption kinetics.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
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