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181315

Sigma-Aldrich

Poliacrilonitrilo

average Mv 150,000

Sinónimos:

Vinyl cyanide

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50 G
US$ 227,00
100 G
US$ 391,00

US$ 227,00

Fecha estimada de envío31 de marzo de 2025

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50 G
US$ 227,00
100 G
US$ 391,00

About This Item

Fórmula lineal:
(C3H3N)n
Número de CAS:
25014-41-9
MDL number:
MFCD00084395
UNSPSC Code:
12162002
PubChem Substance ID:
24850927
NACRES:
NA.23

US$ 227,00

Fecha estimada de envío31 de marzo de 2025

Solicitar un pedido a granel

mol wt

average Mv 150,000

Quality Level

200

refractive index

n20/D 1.514

transition temp

Tm 317 °C
Tg 85 °C

density

1.184 g/mL at 25 °C (lit.)

SMILES string

C=CC#N

InChI

1S/C3H3N/c1-2-3-4/h2H,1H2

InChI key

NLHHRLWOUZZQLW-UHFFFAOYSA-N

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General description

La molécula de PAN tiene grupos nitrilo fuertemente polares. Es relativamente insoluble en la naturaleza. Las fibras de carbono a base de PAN poseen una resistencia muy elevada en comparación con otros precursores poliméricos. Cuando se somete a tratamiento térmico, puede producir alto rendimiento en carbono que da lugar a una estructura molecular similar al grafito termoestable, muy orientado. La generación de fibra de carbono a partir de fibras de PAN es una combinación de tres procesos: estabilización, carbonización y grafitización.[1]

Application

El poliacrilonitrilo (PAN) se utiliza como precursor de carbono polimérico para formar fibras de carbono,[2][3][4] materiales de carbono activado electrohilado con macroporos y mesoporos,[5] aditivos de negro de humo.[6]Se utilizan consecutivamente en el almacenamiento del hidrógeno,[2][3][4] el blindaje EMI,[6] la electroquímica y los procesos de separación.[7] Puede encontrar aplicaciones en compuestos de nanotubos de carbono de pared simple a base de PAN.[7]

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificados de análisis (COA)

Lot/Batch Number
0000417037
0000417037
0000408253
0000408252
0000408252

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Superior prospect of chemically activated electrospun carbon fibers for hydrogen storage
Im JS, et al.
Mat. Res. Bul., 44(9), 1871-1878 (2009)
The improved electrical conductivity of carbon nanofibers by fluorinated MWCNTs.
Im JS, et al.
Journal of Industrial and Engineering Chemistry (Amsterdam, Netherlands), 15(5), 699-702 (2009)
Blesson Isaac et al.
Nanomaterials (Basel, Switzerland), 10(11) (2020-11-21)
This paper deals with the dielectric and mechanical characterizations of polyacrylonitrile (PAN)-aligned electrospun nanofiber mats. A two factor three level full factorial experiment is conducted to understand the effect of various parameters on dielectric and mechanical responses. These responses are
Prevention of dialysis-related amyloidosis using the polyacrylonitrile AN69 membrane.
J Chanard
Contributions to nephrology, 112, 137-144 (1995-01-01)
A review of heat treatment on polyacrylonitrile fiber.
Rahaman MS, et al.
Polymer Degradation and Stability, 92(8), 1421-1432 (2007)
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Artículos

Electrospinning: Enabling Nanostructured Materials

Electrospinning technique applications discussed, emphasizing control of nanofibers and assembly into 3D architectures.

Questions

1–9 of 9 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

  3. Please Confirm PAN (Polyacrylonitrile) is Copolymer or Terpolymer.

    1 answer

    1. Neither - this is a homopolymer comprised only of acrylonitrile units.

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  4. Which synthesis method was used for this polyacrylonitrile (181315)?

    1 answer

    1. Unfortunately, the synthesis method of this product is considered proprietary.

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  5. This is isotactic, syndiotactic or atactic PAN?

    1 answer

    1. The tacticity of this product is not determined.

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  6. What is the Department of Transportation shipping information for this product?

    1 answer

    1. Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.

      Helpful?

  7. What is the degradation temperature of Product 181315, Polyacrylonitrile?

    1 answer

    1. This product has excellent thermal stability below 150°C, but will degrade above this temperature.

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  8. Will Product 181315, Polyacrylonitrile, contain acrylonitrile?

    1 answer

    1. The product may contain trace amounts of the monomer acrylonitrile.  We do not test for the levels of starting material still present in the final polymer.

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  9. What is Product 181315, Polyacrylonitrile, soluble in?

    1 answer

    1. Some common solvents that can be used are DMSO, N,N-dimethylformamide, ethylene carbonate, propylene carbonate, and nitromethane.

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