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Merck
CN

456640

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

Synonym(s):

PEEK, Polyether ether ketone

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About This Item

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

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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

SMILES string

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

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.)

Quality Level

100

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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.

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.

Storage Class

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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Certificates of Analysis (COA)

Lot/Batch Number
MKCZ5364
MKCV6615
MKCW9724
MKCT3636
MKCS8441

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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)
Preparation and characterization of a neutrally charged antifouling nanofiltration membrane by coating a layer of sulfonated poly (ether ether ketone) on a positively charged nanofiltration membrane.
Ba C and Economy J
Journal of Membrane Science , 362(1-2), 192-201 (2010)
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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