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181315

Sigma-Aldrich

Polyacrylonitrile

average Mv 150,000

Synonym(s):

Vinyl cyanide

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50 G
$369.00
100 G
$630.00

$369.00

Estimated to ship on31 March 2025

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50 G
$369.00
100 G
$630.00

About This Item

Linear Formula:
(C3H3N)n
CAS Number:
25014-41-9
MDL number:
MFCD00084395
UNSPSC Code:
12162002
PubChem Substance ID:
24850927
NACRES:
NA.23

$369.00

Estimated to ship on31 March 2025

Request a Bulk Order

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

PAN molecule has strong polar nitrile groups.It is relatively insoluble in nature. PAN based carbon fibers possess very high strength compared to other polymeric precursors. When subjected to heat treatment, it can produce high carbon yield giving rise to thermally stable, highly oriented, graphite like molecular structure. Generating carbon-fiber from PAN based fiber is a combination of three processes-- namely stabilization, carbonization and graphitization.[1]

Application

Polyacrylonitrile (PAN) is used as polymeric carbon precursor to form carbon fibers,[2][3][4] electrospun activated carbon materials having meso-macro pores,[5] carbon black additives.[6]These are consecutively used in hydrogen storage,[2][3][4] EMI shielding,[6] electrochemistry, separation processes.[7] It may find applications in PAN based single walled carbon nanotube composites.[7]

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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Certificates of Analysis (COA)

Lot/Batch Number
0000417037
0000417037
0000408252
0000408253
0000408253

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Polyacrylonitrile single-walled carbon nanotube composite fibers.
Sreekumar TV, et al.
Advanced Materials, 16(1), 58-61 (2004)
A review of heat treatment on polyacrylonitrile fiber.
Rahaman MS, et al.
Polymer Degradation and Stability, 92(8), 1421-1432 (2007)
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
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
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.
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Articles

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 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

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  2. 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

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  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.

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  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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