The particle size of this product is not determined. The item may appear as a powder or chunks.
181315
Poliacrilonitrilo
average Mv 150,000
Sinónimos:
Vinyl cyanide
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Fórmula lineal:
(C3H3N)n
Número CAS:
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12162002
MDL number:
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Servicio técnico
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Permítanos ayudarleNombre del producto
Poliacrilonitrilo, average Mv 150,000
InChI
1S/C3H3N/c1-2-3-4/h2H,1H2
SMILES string
C=CC#N
InChI key
NLHHRLWOUZZQLW-UHFFFAOYSA-N
mol wt
average Mv 150,000
refractive index
n20/D 1.514
transition temp
Tm 317 °C
Tg 85 °C
density
1.184 g/mL at 25 °C (lit.)
Quality Level
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Este artículo | GF03537019 | GF18031711 | 31564 |
|---|---|---|---|
| refractive index n20/D 1.514 | refractive index - | refractive index - | refractive index n20/D 1.391 (lit.) |
| density 1.184 g/mL at 25 °C (lit.) | density - | density - | density - |
| mol wt average Mv 150,000 | mol wt - | mol wt - | mol wt - |
| transition temp Tm 317 °C | transition temp - | transition temp - | transition temp - |
| Quality Level 200 | Quality Level - | Quality Level - | Quality Level 100 |
Application
El poliacrilonitrilo (PAN) se utiliza como precursor de carbono polimérico para formar fibras de carbono,[1][2][3] materiales de carbono activado electrohilado con macroporos y mesoporos,[4] aditivos de negro de humo.[5]Se utilizan consecutivamente en el almacenamiento del hidrógeno,[1][2][3] el blindaje EMI,[5] la electroquímica y los procesos de separación.[6] Puede encontrar aplicaciones en compuestos de nanotubos de carbono de pared simple a base de PAN.[6]
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.[7]
Clase de almacenamiento
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Encuentre la documentación para los productos que ha comprado recientemente en la Biblioteca de documentos.
Ji Sun Im et al.
Journal of colloid and interface science, 314(1), 32-37 (2007-06-19)
Mesoporous activated carbon samples were prepared from electrospun PAN-based carbon fibers using physical activation with silica. Textural characterization was performed using nitrogen adsorption at 77 K. The BET specific surface area and pore size distribution of silica activated carbon materials
Fluorination effects of carbon black additives for electrical properties and EMI shielding efficiency by improved dispersion and adhesion.
Im JS, et al.
Carbon, 47(11), 2640-2647 (2009)
Ji Sun Im et al.
Journal of colloid and interface science, 318(1), 42-49 (2007-11-09)
Polyacrylonitrile (PAN)-based carbon nanofibers (CNFs) were prepared by using electrospinning method and heat treatment to get the media for hydrogen adsorption storage. Potassium hydroxide and zinc chloride activations were conducted to increase specific surface area and pore volume of CNFs.
A review of heat treatment on polyacrylonitrile fiber.
Rahaman MS, et al.
Polymer Degradation and Stability, 92(8), 1421-1432 (2007)
Polyacrylonitrile single-walled carbon nanotube composite fibers.
Sreekumar TV, et al.
Advanced Materials, 16(1), 58-61 (2004)
Artículos
Electrospinning technique applications discussed, emphasizing control of nanofibers and assembly into 3D architectures.
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What is the particle size (PSD) of this product?
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How can I determine the shelf life / expiration / retest date of this product?
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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/418/501/product-dating-information-06-25-mk.pdf¿Le ha resultado útil?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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
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Please Confirm PAN (Polyacrylonitrile) is Copolymer or Terpolymer.
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Neither - this is a homopolymer comprised only of acrylonitrile units.
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Which synthesis method was used for this polyacrylonitrile (181315)?
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Unfortunately, the synthesis method of this product is considered proprietary.
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This is isotactic, syndiotactic or atactic PAN?
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The tacticity of this product is not determined.
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What is Product 181315, Polyacrylonitrile, soluble in?
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Some common solvents that can be used are DMSO, N,N-dimethylformamide, ethylene carbonate, propylene carbonate, and nitromethane.
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What is the degradation temperature of Product 181315, Polyacrylonitrile?
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This product has excellent thermal stability below 150°C, but will degrade above this temperature.
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What is the Department of Transportation shipping information for this product?
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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.
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Will Product 181315, Polyacrylonitrile, contain acrylonitrile?
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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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