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Documentos Principais

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

Sinônimo(s):

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

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About This Item

Número MDL:
Código UNSPSC:
12352103
NACRES:
NA.23

Nome do produto

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

Nível de qualidade

Ensaio

75-85% carbon basis

Formulário

powder

peso molecular

average Mw 400-600 g/mol (PABS)

Características

avg. no. of layers 1

Extensão da rotulagem

65% (PABS, typical)

P × C

1.1 nm × 0.5-1.0 μm , bundle dimensions

Impurezas

4% metals

solubilidade

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

grupo funcional

sulfonic acid

Descrição geral

Average diameter of individual SWCNT = 1.4nm ± 0.1nm

Aplicação

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).

Embalagem

Packaged in glass bottles

Nota de preparo

Electric Arc Discharge Method

Nota de análise

Carbonaceous content

Pictogramas

Exclamation mark

Palavra indicadora

Warning

Frases de perigo

Classificações de perigo

Eye Irrit. 2 - STOT SE 3

Órgãos-alvo

Respiratory system

Código de classe de armazenamento

11 - Combustible Solids

Classe de risco de água (WGK)

WGK 3

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable

Equipamento de proteção individual

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)

Artigos

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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Global Trade Item Number

SKUGTIN
639230-100MG4061833599754
639230-50MG

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