Skip to Content
MilliporeSigma
All Photos(2)

Documents

456640

Sigma-Aldrich

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

Synonym(s):

PEEK, Polyether ether ketone

Sign Into View Organizational & Contract Pricing
All Photos(2)

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

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

Looking for similar products? Visit Product Comparison Guide

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.

Application

PEEK can be sulfonated and coated on nanofiltration(NF) membranes which can be used in the fabrication of antifouling based NF membranes. 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.

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)

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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)
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)
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)
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service