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Carbon nanotube, single-walled, polyaminobenzene sulfonic acid functionalized

75-85% carbon basis, D × L 1.1 nm × 0.5-1.0 μm , bundle dimensions, avg. no. of layers, 1

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Synonym(s):
Carbon nanotube, single-walled, PABS functionalized, SWNT, PABS functionalized
MDL number:
NACRES:
NA.23

Assay

75-85% carbon basis

form

powder

mol wt

average Mw 400-600 g/mol (PABS)

feature

avg. no. of layers 1

extent of labeling

65% (PABS, typical)

D × L

1.1 nm × 0.5-1.0 μm , bundle dimensions

impurities

4% metals

solubility

ethanol: 0.05 mg/mL
DMF: 0.1 mg/mL
H2O: 5.0 mg/mL (As determined by near-IR absorbance spectroscopy.)

functional group

sulfonic acid

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This Item
652490792462755125
form

powder

form

powder

form

viscous liquid (black)

form

powder

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

100

mol wt

average Mw 400-600 g/mol (PABS)

mol wt

-

mol wt

-

mol wt

-

extent of labeling

65% (PABS, typical)

extent of labeling

1.0-3.0 atom% carboxylic acid

extent of labeling

-

extent of labeling

>8% carboxylic acid functionalized

D × L

1.1 nm × 0.5-1.0 μm , bundle dimensions

D × L

4-5 nm × 0.5-1.5 μm , bundle dimensions

D × L

-

D × L

-

General description

Average diameter of individual SWCNT = 1.4nm ± 0.1nm

Application

Method for dispersing in water: In solid form SWNTs are highly entangled and associated in macroscopic particles. It requires significant effort to break such an association and bring the material in solution. Sonicate 50 mg of material in 2 ml water for 30 min. Add 8 ml of water and sonicate for additional 90 min. Typically, after this procedure all material is completely dispersed according to visual observation. For quantitative measurement of the solubility, allow the dispersion to stand overnight at room temperature. Because of the high optical density of concentrated dispersion, dilute an aliquot from the upper layer of the studied dispersion by a factor of 100. The concentration of the diluted solution is estimated from the recorded NIR spectra using a plot of the absorbance at 9750 cm-1 compared to the concentration of a standard solution (see reference).

Packaging

Packaged in glass bottles

Preparation Note

Electric Arc Discharge Method

Analysis Note

Carbonaceous content

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Bin Zhao et al.
Journal of the American Chemical Society, 127(22), 8197-8203 (2005-06-02)
Poly(aminobenzene sulfonic acid) (PABS) and polyethylene glycol (PEG) were covalently attached to single-walled carbon nanotubes (SWNTs) to form water-soluble graft copolymers. Quantitative near-IR (NIR) spectroscopic studies of these SWNT graft copolymers indicate a water solubility of about 5 mg/mL, and
Zhao, B. et al
Advances in Functional Materials, 14, 71-71 (2004)
Nano Letters, 3, 309-309 (2003)

Articles

Carbon nanotubes are materials that possess remarkable properties and offer extraordinary possibilities.

Carbon nanotubes (CNTs) have received much attention since their discovery in 1991 by Sumio lijima1 due to their excellent mechanical, electrical, and optical properties.

A nanocomposite is typically defined as a mixture between a host material (e.g., polymer matrix) and nanofillers with at least one dimension of less than 100 nm.

Single-walled carbon nanotubes (SWCNTs) are promising materials for use in the active channel of field-effect transistors (FETs), photoabsorbing layers of solar cells and photodetectors because of their ultrafast charge transport mobility.

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