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Poly(oxy-1,4-phenyleneoxy-1,4-phenylenecarbonyl-1,4-phenylene)

Synonym(s):

PEEK, Polyether ether ketone

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$240.00

About This Item

Linear Formula:
(OC6H4OC6H4COC6H4)n
CAS Number:
29658-26-2
MDL number:
MFCD00217725
UNSPSC Code:
12162002
PubChem Substance ID:
24869214
NACRES:
NA.23

$240.00

Available to ship onApril 09, 2025Details

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form

pellets

hardness

126 (Rockwell R, ASTM D 785)

mp

322 °C

transition temp

Tm (DSC) 322 °C (onset)

solubility

all common solvents: insoluble
concentrated sulfuric acid: soluble

density

1.3 g/mL at 25 °C (lit.)

SMILES string

Oc1ccc(O)cc1.Oc2ccc(cc2)C(=O)c3ccc(O)cc3

InChI

1S/C13H10O3.C6H6O2/c14-11-5-1-9(2-6-11)13(16)10-3-7-12(15)8-4-10;7-5-1-2-6(8)4-3-5/h1-8,14-15H;1-4,7-8H

InChI key

JHGYTDAAMWIDRN-UHFFFAOYSA-N

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General description

Poly(oxy-1,4-phenyleneoxy-1,4-phenylenecarbonyl-1,4-phenylene)(PEEK) is a semi-crystalline polymer with good thermo-mechanical properties and high chemical resistance which can be used as engineering plastics.[1]

Application

PEEK can be sulfonated and coated on nanofiltration(NF) membranes which can be used in the fabrication of antifouling based NF membranes.[2] Sulfonated PEEK (up to 50-70 degree of sulfonation(DS)) can be used in the formation of proton exchange membranes(PEMs) for fuel cells based applications.[3][4][5][6]

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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Certificates of Analysis (COA)

Lot/Batch Number
MKCV6615
MKCW9724
MKCT3636
MKCS8441
MKCQ9725

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Effects of sulfonated polyether-etherketone (SPEEK) and composite membranes on the proton exchange membrane fuel cell (PEMFC) performance.
Sengul E, et al.
International Journal of Hydrogen Energy, 34(10), 4645-4652 (2009)
Synthesis and characterization of sulfonated poly (ether ether ketone) for proton exchange membranes.
Xing P, et al.
Journal of Membrane Science , 229(1-2), 95-106 (2004)
Sulfonated poly (ether ether ketone) membranes for direct methanol fuel cell.
Li L, et al.
Journal of Membrane Science , 226(1-2), 159-167 (2003)
Proton conducting composite membranes from polyether ether ketone and heteropolyacids for fuel cell applications.
Zaidi SMJ, et al.
Journal of Membrane Science , 173(1), 17-34 (2000)
Glass transition and melting behavior of poly (oxy-1, 4-phenyleneoxy-1, 4-phenylenecarbonyl-1, 4-phenylene)(PEEK).
Cheng SZD, et al.
Macromolecules, 19(7), 1868-1876 (1986)
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Questions

1–2 of 2 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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