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639230

Sigma-Aldrich

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

Synonyme(s) :

Carbon nanotube, single-walled, PABS functionalized, SWNT, PABS functionalized

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About This Item

Numéro MDL:
MFCD05865412
Code UNSPSC :
12352103
Nomenclature NACRES :
NA.23

Niveau de qualité

100

Pureté

75-85% carbon basis

Forme

powder

Poids mol.

average Mw 400-600 g/mol (PABS)

Caractéristiques

avg. no. of layers 1

Ampleur du marquage

65% (PABS, typical)

P × L

1.1 nm × 0.5-1.0 μm , bundle dimensions

Impuretés

4% metals

Solubilité

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

Groupe fonctionnel

sulfonic acid

Catégories apparentées

Description générale

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).

Conditionnement

Packaged in glass bottles

Notes préparatoires

Electric Arc Discharge Method

Remarque sur l'analyse

Carbonaceous content

Pictogrammes

Exclamation mark
GHS07

Mention d'avertissement

Warning

Mentions de danger

H319 - H335

Classification des risques

Eye Irrit. 2 - STOT SE 3

Organes cibles

Respiratory system

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Gloves

Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

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

Manufacturing, Characterization and Use of Single Walled Carbon Nanotubes

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

Sorting Carbon Nanotubes and Their Biological Applications

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

3D Printable Conductive Nanocomposites of PLA and Multi-walled Carbon Nanotubes

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.

Polymer-Sorted Semiconducting Carbon Nanotubes for Transistors and Solar Cells

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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